{"id":88,"date":"2026-05-13T11:19:42","date_gmt":"2026-05-13T02:19:42","guid":{"rendered":"https:\/\/it-blog.kr\/?p=88"},"modified":"2026-06-02T12:22:45","modified_gmt":"2026-06-02T03:22:45","slug":"go","status":"publish","type":"post","link":"https:\/\/it-blog.kr\/?p=88","title":{"rendered":"Golang"},"content":{"rendered":"\n

Go\ub780?<\/h2>\n\n\n\n

Go(\ub610\ub294 Golang)\ub294 Google\uc774 2009\ub144\uc5d0 \ubc1c\ud45c\ud55c Open Source Programming Language\uc774\ub2e4.<\/p>\n\n\n\n

\uac04\uacb0\ud568, \uac00\ub3c5\uc131, C \uacc4\uc5f4 \uc5b8\uc5b4\uc758 \uc131\ub2a5\uc744 \uc720\uc9c0\ud558\uba74\uc11c\ub3c4 \ubb38\ubc95\uc744 \ub300\ud3ed \ub2e8\uc21c\ud654 \ud558\uc600\uc74c.<\/p>\n\n\n\n

\ubd88\ud544\uc694\ud55c Keyword\ub098 \ubcf5\uc7a1\ud55c \ubb38\ubc95\uc774 \uc5c6\uc5b4 \ucf54\ub4dc\uac00 \uae54\ub054\ud568.<\/p>\n\n\n\n

\ube60\ub978 Compile \uc18d\ub3c4\ub85c, \ub300\uaddc\ubaa8 Project\ub3c4 Compile\uc774 \ub9e4\uc6b0 \ube60\ub974\uba70, \ub2e8\uc77c Binary\ub85c Build\ub418\uc5b4 \ubc30\ud3ec\uac00 \uc26c\uc6c0.<\/p>\n\n\n\n

\ub3d9\uc2dc\uc131(Concurrency) \uc9c0\uc6d0 \uace0\ub8e8\ud2f4(goroutine)\uacfc \ucc44\ub110(channel)\uc744 \uc5b8\uc5b4 \ucc28\uc6d0\uc5d0\uc11c \uc9c0\uc6d0\ud574, Multithreaded Programming\uc744 \uc27d\uace0 \uc548\uc804\ud558\uac8c \ud560 \uc218 \uc788\uc74c.<\/p>\n\n\n\n

\ub2e4\ub978 \uc5b8\uc5b4\uc640 \ube44\uad50<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Hello World!<\/h2>\n\n\n\n

bash# vim main.go<\/p>\n\n\n\n

package main\n\nimport \"fmt\"\n\nfunc main() {\n        fmt.Println(\"Hello World\")\n}<\/code><\/pre>\n\n\n\n
bash# go run main.go<\/p>\n\n\n\n
Hello World<\/code><\/pre>\n\n\n\n
\ub77c\uc778 \ud558\ub098\ud558\ub098 \uc124\uba85 \ud574\ubcf4\ub3c4\ub85d \ud568.<\/p>\n\n\n\n
package main<\/code><\/pre>\n\n\n\n
\uc774\uac83\uc740 Package Declaration(\ud328\ud0a4\uc9c0 \uc120\uc5b8)\uc774\ub2e4.
\ubaa8\ub4e0 Go \ud504\ub85c\uadf8\ub7a8\uc740 \ubc18\ub4dc\uc2dc Package Declaration\uc73c\ub85c \uc2dc\uc791\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n
import \"fmt\"<\/code><\/pre>\n\n\n\n
import keyword\ub294 \ub2e4\ub978 \ud328\ud0a4\uc9c0\uc5d0 \ud3ec\ud568\ub41c \ucf54\ub4dc\ub97c \uc774\uc6a9\ud560 \ub54c \uc4f4\ub2e4.
fmt \ud328\ud0a4\uc9c0\uc5d0\ub294 \uc785\ub825\uacfc \ucd9c\ub825\uc5d0 \ub300\ud55c \ud615\uc2dd\ud654\uac00 \uad6c\ud604\ub3fc \uc788\ub2e4.
fmt\uac00 \ud070\ub530\uc634\ud45c\ub85c \ub458\ub7ec\uc313\uc5ec \uc788\ub2e4\ub294 \uc810\uc744 \ubcf4\uc790. \uc774\ub7f0 \uc2dd\uc73c\ub85c \ud070\ub530\uc634\ud45c\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc740 \ubb38\uc790\uc5f4 \ub9ac\ud130\ub7f4 \uc774\ub77c\uace0 \uc54c\ub824\uc838 \uc788\uc73c\uba70, \uc218\uc2dd(expression)\uc5d0 \ud574\ub2f9\ud55c\ub2e4.
Go\uc5d0\uc11c \ubb38\uc790\uc5f4\uc740 \uae38\uc774\uac00 \uc815\ud574\uc9c4 \ubb38\uc790\uc758 \ub098\uc5f4\uc744 \ub098\ud0c0\ub0b8\ub2e4.<\/p>\n\n\n\n
func main() {\n}<\/code><\/pre>\n\n\n\n
\uc774\uac83\uc740 \ud568\uc218 \uc120\uc5b8 \uc774\ub2e4.
\ud568\uc218(function)\uc740 Go \ud504\ub85c\uadf8\ub7a8\uc758 \uae30\ubcf8 \uad6c\uc131 \uc694\uc18c\ub2e4. \ud568\uc218\ub294 \uc785\ub825\uacfc \ucd9c\ub825, \uadf8\ub9ac\uace0 \ubb38\uc7a5(\uc21c\uc11c\ub300\ub85c \uc2e4\ud589\ub418\ub294)\uc774\ub77c\uace0 \ud558\ub294 \uc77c\ub828\uc758 \ub2e8\uacc4\ub97c \ud3ec\ud568\ud55c\ub2e4. \ubaa8\ub4e0 \ud568\uc218\ub294 func\ub77c\ub294 keyword\ub85c \uc2dc\uc791\ud574 \uc774\uc5b4\uc11c \ud574\ub2f9 \ud568\uc218\uc758 \uc774\ub984(\uc774 \uacbd\uc6b0 main), \uad04\ud638\ub85c \ub458\ub7ec\uc2f8\uc778 0\uac1c \uc774\uc0c1\uc758 \ub9e4\uac1c\ubcc0\uc218(parameter), \ubc18\ud658\ud615(\uc120\ud0dd\uc0ac\ud56d), \uc911\uad04\ud638\ub85c \ub458\ub7ec\uc313\uc778 \ubcf8\ubb38(body)\uc774 \uc628\ub2e4.
\uc774 \ud568\uc218\uc5d0\ub294 parameter\uac00 \uc5c6\uace0, \uc544\ubb34\uac83\ub3c4 \ubc18\ud658\ud558\uc9c0 \uc54a\uc73c\uba70, \ubb38\uc7a5\ub9cc \ud55c \uc904 \ub2f4\uace0 \uc788\ub2e4.
main\uc774\ub77c\ub294 \uc774\ub984\uc740 \ud2b9\ubcc4\ud55c\ub370, \uc774 \ud568\uc218\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc2e4\ud589\ud560 \ub54c \ud638\ucd9c\ub418\ub294 \ud568\uc218\uc774\uae30 \ub54c\ubb38\uc774\ub2e4.<\/p>\n\n\n\n
fmt.Println(\"Hello World\")<\/code><\/pre>\n\n\n\n
\ud574\ub2f9 \uad6c\ubb38\uc740 \uc138 \uac00\uc9c0 \uad6c\uc131\uc694\uc18c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4.
\uba3c\uc800 fmt \ud328\ud0a4\uc9c0 \uc548\uc5d0 \ud3ec\ud568\ub41c Println \uc774\ub77c\ub294 \ud568\uc218\uc5d0 \uc811\uadfc\ud55c\ub2e4.
\uadf8\ub7f0 \ub2e4\uc74c Hello World\uac00 \ub2f4\uae34 \uc0c8 \ubb38\uc790\uc5f4\uc744 \uc0dd\uc131\ud574\uc11c,
\ud574\ub2f9 \ubb38\uc790\uc5f4\uc744 \uccab \ubc88\uc9f8\uc774\uc790 \uc720\uc77c\ud55c \uc778\uc790\ub85c \ud568\uc218\ub97c \ud638\ucd9c\ud55c\ub2e4.<\/p>\n\n\n\n
Type<\/h2>\n\n\n\n
\uc22b\uc790 – \uc815\uc218<\/h3>\n\n\n\n
    \n
  • \uc18c\uc218\ubd80\uac00 \uc5c6\ub294 \uc22b\uc790\ub97c \uc758\ubbf8\ud568.<\/li>\n\n\n\n
  • \uc608\ub97c \ub4e4\uba74 -3, -2, -1, 0, 1, 2, 3 \uc774 \uc788\uc74c.<\/li>\n\n\n\n
  • Go\uc758 \uc815\uc218 Type\uc740 \uc544\ub798\uc640 \uac19\uc740 \uc885\ub958\uac00 \uc788\uc74c.\n
      \n
    • uint8<\/li>\n\n\n\n
    • uint16<\/li>\n\n\n\n
    • uint32<\/li>\n\n\n\n
    • uint64<\/li>\n\n\n\n
    • int8<\/li>\n\n\n\n
    • int16<\/li>\n\n\n\n
    • int32<\/li>\n\n\n\n
    • int64<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • 8, 16, 32, 64\ub294 \uac01 Type\uc774 \uc0ac\uc6a9\ud558\ub294 Bit\uc758 \uc218\ub97c \ub098\ud0c0\ub0c4.<\/li>\n\n\n\n
    • uint\ub294 \ubd80\ud638\uac00 \uc5c6\ub294 \uc815\uc218(unsigned integer)\ub97c \ub098\ud0c0\ub0c4.\n
        \n
      • \uc591\uc218 \ub610\ub294 0\ub9cc \ub2f4\uae34\ub2e4.<\/li>\n\n\n\n
      • uint8 = byte \uc774\ub77c\uace0\ub3c4 \ubd80\ub984.<\/li>\n\n\n\n
      • uint32 = rune \uc774\ub77c\uace0\ub3c4 \ubd80\ub984.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • int\ub294 \ubd80\ud638\uac00 \uc788\ub294 \uc815\uc218(signed integer)\ub97c \ub098\ud0c0\ub0c4.<\/li>\n\n\n\n
      • \uc77c\ubc18\uc801\uc73c\ub85c \uc815\uc218\ub97c \uc774\uc6a9\ud560 \uacbd\uc6b0 int<\/code> type\uc744 \uc0ac\uc6a9\ud558\uba74 \ub420 \uac83.<\/li>\n<\/ul>\n\n\n\n
        Example<\/h4>\n\n\n\n
        \uc815\uc218\ub97c \uc0ac\uc6a9\ud558\ub294 \uc608\uc81c \ud504\ub85c\uadf8\ub7a8 \uc791\uc131<\/p>\n\n\n\n
        bash# vim main.go<\/p>\n\n\n\n
        package main\n\nimport \"fmt\"\n\nfunc main() {\n        fmt.Println(\"1 + 1 =\", 1 + 1)\n}<\/code><\/pre>\n\n\n\n
        bash# go run main.go<\/p>\n\n\n\n
        1 + 1 = 2<\/code><\/pre>\n\n\n\n
        \uc774 \ud504\ub85c\uadf8\ub7a8\uc740 1 + 1 = <\/code>\uc774\ub77c\ub294 \ubb38\uc790\uc5f4\uc5d0 \uc774\uc5b4 1 + 1<\/code> \uc774\ub77c\ub294 \uc218\uc2dd\uc758 \uacb0\uacfc\ub97c \ucd9c\ub825\ud55c\ub2e4.<\/p>\n\n\n\n
        \uc22b\uc790 – \ubd80\ub3d9\uc18c\uc218\uc810 \uc218<\/h3>\n\n\n\n
          \n
        • \uc18c\uc218\ubd80\uac00 \ud3ec\ud568\ub41c \uc22b\uc790\ub97c \uc758\ubbf8\ud568.<\/li>\n\n\n\n
        • \uc608\ub97c \ub4e4\uba74 1.234, 123.4 0.0001234 \uac00 \uc788\uc74c.<\/li>\n\n\n\n
        • \ubd80\ub3d9 \uc18c\uc218\uc810 \uc218\ub294 \ubd80\uc815\ud655\ud568.\n
            \n
          • \uc608\ub97c \ub4e4\uc5b4 1.01 - 0.99<\/code>\ub97c \uacc4\uc0b0\uc2dc 0.020000000000000018<\/code> \uc774 \uacb0\uacfc\ub85c \ub098\ud0c0\ub09c\ub2e4.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
          • \uc815\uc218\uc640 \ub2ec\ub9ac \ubd80\ub3d9\uc18c\uc218\uc810 \uc218\ub294 \uc77c\uc815\ud55c \ud06c\uae30(32bit or 64bit)\uac00 \uc788\ub2e4.\n
              \n
            • \ud06c\uae30\uac00 \ud070 \ubd80\ub3d9\uc18c\uc218\uc810 \uc218\ub97c \uc0ac\uc6a9\ud560\uc218\ub85d \uc22b\uc790\uc758 \uc815\ud655\ub3c4\uac00 \ub192\uc544\uc9c4\ub2e4.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
            • \uc22b\uc790\uc640 \ub354\ubd88\uc5b4 \ub2e4\ub978 \uc5ec\ub7ec \uac12\ub3c4 \ud45c\ud604\ud560 \uc218 \uc788\ub294\ub370, \uac00\ub839 \uc22b\uc790\uac00 \uc544\ub2cc \uac83\uc774\ub098 \uc591\uc758 \ubb34\ud55c\ub300, \uc74c\uc758 \ubb34\ud55c\ub300 \uac19\uc740 \uac83\uc774 \uc788\ub2e4.<\/li>\n\n\n\n
            • Go\uc5d0\ub294 float32<\/code>\uc640 float64<\/code>\ub77c\ub294 \ub450 \uac00\uc9c0 \ubd80\ub3d9\uc18c\uc218\uc810 Type\uc744 \ube44\ub86f\ud574 complex64<\/code>\uc640 complex128<\/code>\uc774\ub77c\uace0 \ud558\ub294 \ubcf5\uc18c\uc218\ub97c \ub098\ud0c0\ub0b4\ub294 \ub450 \uac00\uc9c0 Type\uc774 \uc788\ub2e4.<\/li>\n\n\n\n
            • \uc77c\ubc18\uc801\uc73c\ub85c \ubd80\ub3d9\uc18c\uc218\uc810 \uc218\ub97c \uc774\uc6a9\ud560 \ub54c float64<\/code>\ub97c \uc0ac\uc6a9\ud558\uba74 \ub420 \uac83.<\/li>\n<\/ul>\n\n\n\n
              Example<\/h4>\n\n\n\n
              \ubd80\ub3d9\uc18c\uc218\uc810 \uc218\ub97c \uc0ac\uc6a9\ud558\ub294 \uc608\uc81c \ud504\ub85c\uadf8\ub7a8 \uc791\uc131<\/p>\n\n\n\n
              bash# vim main.go<\/p>\n\n\n\n
              package main\n\nimport \"fmt\"\n\nfunc main() {\n        fmt.Println(\"1.1 + 1.1 =\", 1.1 + 1.1)\n}<\/code><\/pre>\n\n\n\n
              bash# go run main.go<\/p>\n\n\n\n
              1.1 + 1.1 = 2.2<\/code><\/pre>\n\n\n\n
              \uc774\ubc88\uc5d0\ub294 \uc18c\uc218\uc810\uc744 \ud3ec\ud568\ud55c \uacc4\uc0b0\uc5d0 \uc131\uacf5\ud558\uc600\ub2e4.<\/p>\n\n\n\n
              <\/p>\n\n\n\n
              Go\uc5d0\ub294 \ub367\uc148\ubfd0 \uc544\ub2c8\ub77c \ub2e4\ub978 \uc5ec\ub7ec \uc5f0\uc0b0\uc790\ub3c4 \uc788\ub2e4.<\/p>\n\n\n\n
              \uc5f0\uc0b0\uc790<\/strong><\/td>\uc5f0\uc0b0<\/strong><\/td><\/tr>
              +<\/td>\ub367\uc148<\/td><\/tr>
              –<\/td>\ube84\uc148<\/td><\/tr>
              *<\/td>\uacf1\uc148<\/td><\/tr>
              \/<\/td>\ub098\ub217\uc148<\/td><\/tr>
              %<\/td>\ub098\uba38\uc9c0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
              \ubb38\uc790\uc5f4<\/h3>\n\n\n\n
              Example<\/h4>\n\n\n\n
              bash# vim main.go<\/p>\n\n\n\n
              package main\n\nimport \"fmt\"\n\nfunc main() {\n    fmt.Println(len(\"Hello World\"))\n    fmt.Println(\"Hello World\"[0])\n    fmt.Println(\"Hello \" + \"World\")\n}<\/code><\/pre>\n\n\n\n
              bash# go run main.go<\/p>\n\n\n\n
              11\n72\nHello World<\/code><\/pre>\n\n\n\n
                \n
              1. Hello World\uc758 \uae38\uc774 (string\uc758 \uc218)<\/li>\n\n\n\n
              2. Hello World\uc758 0\ubc88\uc9f8 Index \uac12\uc758 byte<\/code> \uac12.\n
                  \n
                • byte<\/code> \uac12\uc774\ub780 int8<\/code>\uc744 \uc758\ubbf8.<\/li>\n\n\n\n
                • 0\ubc88\uc9f8 Index\ub294 H \uc778\ub370, H\ub294 ASCII 72\ubc88 \uc774\ubbc0\ub85c \ud574\ub2f9 \uac12\uc774 \ucd9c\ub825\ub418\ub294\uac83.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                • Hello <\/code>\uc640, World<\/code>\ub97c \uc5f0\uc0b0\ud55c \uacb0\uacfc\uac00 \ucd9c\ub825\ub428.\n
                    \n
                  • Go compiler\ub294 \uc778\uc790\uc758 Type\uc744 \ud1a0\ub300\ub85c \uc5b4\ub5bb\uac8c \ucc98\ub9ac\ud560\uc9c0 \ud310\ub2e8\ud55c\ub2e4. +<\/code>\uc758 \uc591\uce21\uc774 \ubaa8\ub450 \ubb38\uc790\uc5f4\uc774\ubbc0\ub85c compiler\ub294 \ub367\uc148\uc774 \uc544\ub2cc \ubb38\uc790\uc5f4 \uc5f0\uacb0\uc744 \uc758\ub3c4\ud55c\ub2e4\uace0 \uac00\uc815\ud568.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
                    Boolean<\/h3>\n\n\n\n
                    Boolean \uac12\uc740 True\uc640 False\ub97c \ub098\ud0c0\ub0b4\ub294\ub370 \uc0ac\uc6a9\ub418\ub294 \ud2b9\ubcc4\ud55c 1bit \uc815\uc218 type\uc774\ub2e4.<\/p>\n\n\n\n
                    on\/off\ub97c \ub098\ud0c0\ub0b4\uae30\ub3c4 \ud55c\ub2e4.<\/p>\n\n\n\n
                    Boolean \uac12\uc5d0 \ub300\ud574\uc11c\ub294 \uc138\uac00\uc9c0 \uc5f0\uc0b0\uc790\uac00 \uc0ac\uc6a9\ub41c\ub2e4.<\/p>\n\n\n\n
                    \uc5f0\uc0b0\uc790<\/strong><\/td>\uc758\ubbf8<\/strong><\/td><\/tr>
                    &&<\/td>and<\/td><\/tr>
                    ||<\/td>or<\/td><\/tr>
                    !<\/td>not<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                    \ub2e4\uc74c\uc740 Boolean \uc5f0\uc0b0\uc790\ub97c \uc5b4\ub5bb\uac8c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294\uc9c0 \ubcf4\uc5ec\uc8fc\ub294 \ud504\ub85c\uadf8\ub7a8\uc774\ub2e4.<\/p>\n\n\n\n
                    bash# vim main.go<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n    fmt.Println(true && true)\n    fmt.Println(true && false)\n    fmt.Println(true || true)\n    fmt.Println(true || false)\n    fmt.Println(!true)\n}<\/code><\/pre>\n\n\n\n
                    bash# go run main.go<\/p>\n\n\n\n
                    true\nfalse\ntrue\ntrue\nfalse<\/code><\/pre>\n\n\n\n
                    Variable<\/h2>\n\n\n\n
                    \ubcc0\uc218\ub294 \uc800\uc7a5 \uacf5\uac04\uc774\uba70 \uad6c\uccb4\uc801\uc778 Type\uacfc \uadf8\uc640 \uc5f0\uad00\ub41c \uc774\ub984\uc744 \uac00\uc9c0\uace0 \uc788\ub2e4.<\/p>\n\n\n\n
                    \uc704\uc5d0\uc11c \uc791\uc131\ud55c \ud504\ub85c\uadf8\ub7a8\ub4e4\uc774 \ubcc0\uc218\ub97c \uc0ac\uc6a9\ud558\ub3c4\ub85d \uc218\uc815 \ud574 \ubcf4\uaca0\ub2e4.<\/p>\n\n\n\n
                    \ucf54\ub4dc:<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        var x string = \"Hello World\"\n        fmt.Println(x)\n}<\/code><\/pre>\n\n\n\n
                    \uc2e4\ud589 \uacb0\uacfc:<\/p>\n\n\n\n
                    Hello World<\/code><\/pre>\n\n\n\n
                    \uc774\ubc88\uc5d0\ub294 “Hello World”\ub77c\ub294 \ubb38\uc790\uc5f4\uc744 x<\/code> \ub77c\ub294 \ubcc0\uc218\uc5d0 \ud560\ub2f9\ud588\ub2e4.<\/p>\n\n\n\n
                    \uadf8\ub9ac\uace0 Println \ud568\uc218\uac00 x<\/code> \ubcc0\uc218\uc5d0\uc11c \uac12\uc744 \uac00\uc838\uc624\ub3c4\ub85d \ud558\uc600\ub2e4.<\/p>\n\n\n\n
                    \uc544\ub798\uc640 \uac19\uc774 \uc0ac\uc6a9\ud560 \uc218\ub3c4 \uc788\ub2e4.<\/p>\n\n\n\n
                    \ucf54\ub4dc:<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        var x string\n        x = \"Hello\"\n        fmt.Println(x)\n        x = x + \" World\"\n        fmt.Println(x)\n}<\/code><\/pre>\n\n\n\n
                    \uc2e4\ud589 \uacb0\uacfc:<\/p>\n\n\n\n
                    Hello\nHello World<\/code><\/pre>\n\n\n\n
                    \ub2e4\uc74c \ud504\ub85c\uadf8\ub7a8\uc740 ==<\/code> \uae30\ud638\ub97c \uc0ac\uc6a9\ud558\uc5ec 2\uac1c \uac12\uc744 \ube44\uad50\ud55c \uacb0\uacfc\ub97c Boolean Type\uc73c\ub85c \ucd9c\ub825\ud574\uc900\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        var x string = \"Hello\"\n        var y string = \"World\"\n        fmt.Println(x == y)\n}<\/code><\/pre>\n\n\n\n
                    false<\/code><\/pre>\n\n\n\n
                    \ub2e4\uc74c \ud504\ub85c\uadf8\ub7a8\uc740 :=<\/code> \ub97c \uc0ac\uc6a9\ud558\uc5ec Type\uc744 \uba85\uc2dc\ud558\uc9c0 \uc54a\uace0 \ubcc0\uc218\ub97c \uc120\uc5b8\ud55c \uac83\uc774\ub2e4.<\/p>\n\n\n\n
                    :=<\/code> \ub294 Short Variable Declaration(\uc9e7\uc740 \ubcc0\uc218 \uc120\uc5b8)\uc774\ub77c\uace0 \ud55c\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        x := \"Hello World\"\n        fmt.Println(x)\n}<\/code><\/pre>\n\n\n\n
                    Hello World<\/code><\/pre>\n\n\n\n
                    \uc704 x := \"Hello World\"<\/code> \ub294 var x = \"Hello World\"<\/code> \uc640 \ub3d9\uc77c\ud558\ub2e4\uace0 \ubcf4\uba74 \ub428.<\/p>\n\n\n\n
                    Global Variable<\/h3>\n\n\n\n
                    \uc544\ub798\ub294 \uc804\uc5ed \ubcc0\uc218(Global Variable)\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc791\uc131\ud55c \ud504\ub85c\uadf8\ub7a8\uc784.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nvar x = \"Hello World\"\n\nfunc main() {\n        fmt.Println(x)\n}<\/code><\/pre>\n\n\n\n
                    Hello World<\/code><\/pre>\n\n\n\n
                    \uc804\uc5ed \ubcc0\uc218\ub97c \uc0ac\uc6a9\ud588\ub2e4\ub294 \uac83\uc740 \ud504\ub85c\uadf8\ub7a8 \ub0b4 \uc5b4\ub5a0\ud55c \ud568\uc218\uc5d0\uc11c\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ubcc0\uc218\ub97c \uc9c0\uc815\ud588\ub2e4\ub294 \uac83.<\/p>\n\n\n\n
                    \ubc18\ub300\ub85c \ud568\uc218 \ub0b4\uc5d0 \ubcc0\uc218 \uc120\uc5b8\uc744 \ud558\ub294 \uac83\uc744 \uc9c0\uc5ed \ubcc0\uc218(Local Variable)\ub97c \uc0ac\uc6a9\ud588\ub2e4\uace0 \ud568.<\/p>\n\n\n\n
                    Constant<\/h3>\n\n\n\n
                    Go\uc5d0\uc11c\ub3c4 \uc0c1\uc218(constant)\ub97c \uc9c0\uc6d0\ud55c\ub2e4.<\/p>\n\n\n\n
                    \uae30\ubcf8\uc801\uc73c\ub85c \uc0c1\uc218\ub294 \uac12\uc774 \ubcc0\uacbd\ub420 \uc218 \uc5c6\ub2e4.<\/p>\n\n\n\n
                    \uc0c1\uc218\ub294 \ubcc0\uc218\uc640 \uac19\uc740 \ubc29\uc2dd\uc73c\ub85c \ub9cc\ub4e4\uc5b4\uc9c0\uc9c0\ub9cc var<\/code> keyword\ub97c \uc0ac\uc6a9\ud558\ub294 \ub300\uc2e0 const<\/code> \ub77c\ub294 keyword\ub97c \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n\n\n\n
                    \uc544\ub798\ub294 const\ub97c \uc0ac\uc6a9\ud55c \uc608\uc2dc \ud504\ub85c\uadf8\ub7a8\uc774\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nconst x = \"Hello World\"\n\nfunc main() {\n        fmt.Println(x)\n}<\/code><\/pre>\n\n\n\n
                    Hello World<\/code><\/pre>\n\n\n\n
                    \uc544\ub798\ub294 const\uc758 \uac12\uc744 \ubc14\uafb8\ub824\uace0 \uc2dc\ub3c4\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc774\ub2e4. \uc5d0\ub7ec\uac00 \ubc1c\uc0dd\ud558\ub294 \uac83\uc744 \ud655\uc778\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        const x = \"Hello World\"\n        x = \"Some other string\"\n        fmt.Println(x)\n}<\/code><\/pre>\n\n\n\n
                    # command-line-arguments\n.\/main.go:8:2: cannot assign to x (neither addressable nor a map index expression)<\/code><\/pre>\n\n\n\n
                    \uc5ec\ub7ec \uac1c\uc758 \ubcc0\uc218 \uc815\uc758<\/h3>\n\n\n\n
                    \uc544\ub798\uc640 \uac19\uc774 \ud558\uba74 \uc5ec\ub7ec\uac1c\uc758 \ubcc0\uc218\ub97c \ucd95\uc57d\ub41c \ucf54\ub4dc\ub85c \uc815\uc758\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
                    var {\n    a = 5\n    b = 10\n    c = 15\n}<\/code><\/pre>\n\n\n\n
                    \uc608\uc81c \ud504\ub85c\uadf8\ub7a8<\/h3>\n\n\n\n
                    \ub2e4\uc74c\uc740 \uc0ac\uc6a9\uc790\uac00 \uc785\ub825\ud55c \uc22b\uc790\ub97c \ubc1b\uc544 \ub450 \ubc30\ub85c \ub9cc\ub4dc\ub294 \ud504\ub85c\uadf8\ub7a8\uc774\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n    fmt.Print(\"Enter a number: \")\n    var input float64\n    fmt.Scanf(\"%f\", &input)\n\n    output := input * 2\n    fmt.Println(output)\n}<\/code><\/pre>\n\n\n\n
                    Enter a number: 4\n8<\/code><\/pre>\n\n\n\n
                    \uc5ec\uae30\uc11c\ub294 \uc0ac\uc6a9\uc790 \uc785\ub825\uc744 \uc77d\uc5b4\ub4e4\uc774\uae30 \uc704\ud574 fmt \ud328\ud0a4\uc9c0\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \ub610 \ub2e4\ub978 \ud568\uc218 Scanf\ub97c \uc0ac\uc6a9\ud588\ub2e4. &input\uc740 Scanf\uac00 \uc6b0\ub9ac\uac00 \uc785\ub825\ud55c \uc22b\uc790\ub85c input\uc744 \ucc44\uc6b4\ub2e4\ub294 \uac83\uc774\ub2e4.<\/p>\n\n\n\n
                    \uc81c\uc5b4 \uad6c\uc870<\/h2>\n\n\n\n
                    For<\/h3>\n\n\n\n
                    for\ubb38\uc744 \uc774\uc6a9\ud558\uba74 \uc5ec\ub7ec \ubb38\uc7a5(\ube14\ub85d)\uc744 \uc5ec\ub7ec \ubc88\uc5d0 \uac78\uccd0 \ubc18\ubcf5\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n    i := 1\n    for i <= 10 {\n        fmt.Println(i)\n        i = i + 1\n    }\n}<\/code><\/pre>\n\n\n\n
                    1\n2\n3\n4\n5\n6\n7\n8\n9\n10<\/code><\/pre>\n\n\n\n
                    \uba3c\uc800 \ucd9c\ub825\ud558\uace0 \uc2f6\uc740 \uc22b\uc790\ub97c \uc800\uc7a5\ud558\ub294 \ub370 \uc0ac\uc6a9\ud558\ub294 i\ub77c\ub294 \ubcc0\uc218\ub97c \uc815\uc758\ud558\uc600\ub2e4.<\/p>\n\n\n\n
                    \uadf8\ub7f0 \ub2e4\uc74c, for \ub77c\ub294 keyword\ub97c \uc0ac\uc6a9\ud574 for loop\ub97c \uc791\uc131\ud588\ub294\ub370, true\uc774\uac70\ub098 false\uac00 \ub418\ub294 \uc870\uac74\uc744 \uc9c0\uc815\ud558\uace0, \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc2e4\ud589\ud560 \ube14\ub85d\uc744 \uc791\uc131\ud588\ub2e4.<\/p>\n\n\n\n
                    If<\/h3>\n\n\n\n
                    if\ubb38\uc744 \uc0ac\uc6a9\ud574\uc11c \uc870\uac74\uc744 \ub123\uace0 true, false\uc5d0 \ub530\ub978 \uba85\ub839\uc744 \uc2e4\ud589 \ud574 \ubcf4\ub3c4\ub85d \ud558\uaca0\ub2e4.<\/p>\n\n\n\n
                    \uc704\uc5d0\uc11c \uc0ac\uc6a9\ud55c for\ubb38\uc744 \uc751\uc6a9\ud558\uc5ec 1\ubd80\ud130 10\uae4c\uc9c0 \uc22b\uc790\uc911\uc5d0 2\ub85c \ub098\ub204\uc5b4 \ub5a8\uc5b4\uc9c0\ub294\uc9c0 \uc5ec\ubd80\ub97c \uac80\uc0ac\ud558\uc5ec \ud640\uc218, \uc9dd\uc218 \uc5ec\ubd80\ub97c \ucd9c\ub825 \ud574 \ubcf4\uaca0\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        for i := 1; i <= 10; i++ {\n                if i % 2 == 0 {\n                        fmt.Println(i, \"\uc9dd\uc218\")\n                } else {\n                        fmt.Println(i, \"\ud640\uc218\")\n                }\n        }\n}<\/code><\/pre>\n\n\n\n
                    1 \ud640\uc218\n2 \uc9dd\uc218\n3 \ud640\uc218\n4 \uc9dd\uc218\n5 \ud640\uc218\n6 \uc9dd\uc218\n7 \ud640\uc218\n8 \uc9dd\uc218\n9 \ud640\uc218\n10 \uc9dd\uc218<\/code><\/pre>\n\n\n\n
                    Switch<\/h3>\n\n\n\n
                    \uac01 \uc22b\uc790\uc5d0 \ub300\ud55c \ud55c\uae00 \uc774\ub984\uc744 \ucd9c\ub825\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc774 \ud544\uc694\ud558\ub2e4\uace0 \uce58\uc790.<\/p>\n\n\n\n
                    if\ub97c \uc0ac\uc6a9\ud55c\ub2e4\uba74 \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\ub85c \uad6c\ud604\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        var i int\n        fmt.Print(\"\uc815\uc218\ub97c \uc785\ub825\ud558\uc138\uc694: \")\n        fmt.Scanf(\"%d\", &i)\n\n        if i == 0 {\n            fmt.Println(\"\uc601\")\n        } else if i == 1 {\n            fmt.Println(\"\uc77c\")\n        } else if i == 2 {\n            fmt.Println(\"\uc774\")\n        } else if i == 3 {\n            fmt.Println(\"\uc0bc\")\n        } else if i == 4 {\n            fmt.Println(\"\uc0ac\")\n        } else if i == 5 {\n            fmt.Println(\"\uc624\")\n        }\n}<\/code><\/pre>\n\n\n\n
                    \uc815\uc218\ub97c \uc785\ub825\ud558\uc138\uc694: 5\n\uc624<\/code><\/pre>\n\n\n\n
                    \ud504\ub85c\uadf8\ub7a8\uc744 \uc774\ub7f0 \uc2dd\uc73c\ub85c \uc791\uc131\ud558\ub824\uba74 \uaf64\ub098 \ube44\ud6a8\uc728\uc801\uc774\ub77c\uace0 \ubcfc \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
                    \uadf8\ub807\uae30 \ub54c\ubb38\uc5d0 Go\uc5d0\uc11c\ub294 \uc774\ub97c \ub354 \uc190\uc27d\uac8c \ub9cc\ub4e4\uc5b4\uc8fc\ub294 switch<\/code>\ub77c\ub294 \uad6c\ubb38\uc744 \uc81c\uacf5\ud55c\ub2e4.<\/p>\n\n\n\n
                    \uc544\ub798\uc640 \uac19\uc774 \uc791\uc131\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        var i int\n        fmt.Print(\"\uc815\uc218\ub97c \uc785\ub825\ud558\uc138\uc694: \")\n        fmt.Scanf(\"%d\", &i)\n\n        switch i {\n                case 0: fmt.Println(\"\uc601\")\n                case 1: fmt.Println(\"\uc77c\")\n                case 2: fmt.Println(\"\uc774\")\n                case 3: fmt.Println(\"\uc0bc\")\n                case 4: fmt.Println(\"\uc0ac\")\n                case 5: fmt.Println(\"\uc624\")\n                default: fmt.Println(\"\uc54c \uc218 \uc5c6\ub294 \uc22b\uc790\")\n        }\n}<\/code><\/pre>\n\n\n\n
                    \uc815\uc218\ub97c \uc785\ub825\ud558\uc138\uc694: 4\n\uc0ac<\/code><\/pre>\n\n\n\n
                    switch\ubb38\uc740 switch<\/code>\ub77c\ub294 keyword\ub85c \uc2dc\uc791\ud55c \ud6c4 \uc218\uc2dd\uc774 \ub098\uc624\uace0 \uac01 case\uac00 \uc5f0\uc18d\ud574\uc11c \ub098\uc628\ub2e4.<\/p>\n\n\n\n
                    \uc218\uc2dd\uc758 \uac12\uc740 \uac01 case<\/code> keyword \ub2e4\uc74c\uc5d0 \ub098\uc624\ub294 \uc218\uc2dd\uacfc \ube44\uad50\ub41c\ub2e4. \ub450 \uc218\uc2dd\uc758 \uac12\uc774 \uc77c\uce58\ud558\uba74 :<\/code> \ub2e4\uc74c\uc5d0 \ub098\uc624\ub294 \uad6c\ubb38\uc774 \uc2e4\ud589\ub41c\ub2e4.<\/p>\n\n\n\n
                    switch\ubb38\uc5d0\uc11c\ub294 \uac12\uc774 \uc77c\uce58\ud558\ub294 \ucf00\uc774\uc2a4\uac00 \uc5c6\uc744 \uacbd\uc6b0 default<\/code> case\ub3c4 \uc9c0\uc6d0\ud55c\ub2e4. (if\ubb38\uc758 else\uc640 \ube44\uc2b7)<\/p>\n\n\n\n
                    Array<\/h2>\n\n\n\n
                    \ubc30\uc5f4\uc740 \uae38\uc774\uac00 \uace0\uc815\ub41c, \ubc88\ud638\uac00 \ub9e4\uaca8\uc9c4 \ub2e8\uc77c \ud0c0\uc785 \uc6d0\uc18c\uc758 \ub098\uc5f4\uc774\ub2e4. Go\uc5d0\uc11c\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \ud615\ud0dc\ub97c \ub764\ub2e4.<\/p>\n\n\n\n
                    var x [5]int<\/code><\/pre>\n\n\n\n
                    x\ub294 5\uac1c\uc758 int type\uc73c\ub85c \uad6c\uc131\ub41c array\uc758 \uc608\ub2e4. \ub2e4\uc74c \ud504\ub85c\uadf8\ub7a8\uc744 \uc2e4\ud589\ud574 \ubcf4\uc790.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        var x [5]int\n        x[4] = 100\n        fmt.Println(x)\n}<\/code><\/pre>\n\n\n\n
                    [0 0 0 0 100]<\/code><\/pre>\n\n\n\n
                    x[4] = 100<\/code>\uc740 \ubc30\uc5f4 x\uc758 5\ubc88\uc9f8 \uc694\uc18c\ub97c 100\uc73c\ub85c \uc124\uc815\ud558\ub77c \uc774\ub2e4.<\/p>\n\n\n\n
                    \ub2e4\uc74c \ud504\ub85c\uadf8\ub7a8\uc740 \uc2dc\ud5d8 \uc810\uc218\uc758 \ud3c9\uade0\uc744 \uacc4\uc0b0\ud55c\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        var x [5]float64\n        x[0] = 98\n        x[1] = 93\n        x[2] = 77\n        x[3] = 82\n        x[4] = 83\n\n        var total float64 = 0\n        for _, value := range x {\n                total += value\n        }\n        fmt.Println(total \/ float64(len(x)))\n}<\/code><\/pre>\n\n\n\n
                    86.6<\/code><\/pre>\n\n\n\n
                    for _, value := range x<\/code> \ub97c \uc0ac\uc6a9\ud558\uba74 x array\uc758 \uac12\ub4e4\uc744 value\uc5d0 \ub123\uc5b4 \uc21c\ud68c\ud55c\ub2e4.<\/p>\n\n\n\n
                    \uc5ec\uae30\uc5d0\uc11c _<\/code> \ub294 \ubc30\uc5f4\uc5d0\uc11c\uc758 index\uac12\uc744 \uc758\ubbf8\ud558\uace0, value<\/code> \ub294 x[i]\ub97c \uc758\ubbf8\ud55c\ub2e4.<\/p>\n\n\n\n
                    _(underscore)\ub294 compiler\uc5d0\uac8c \uc774\uac83\uc774 \ud544\uc694\ud558\uc9c0 \uc54a\ub2e4\uace0 \uc54c\ub824\uc8fc\ub294 \ub370 \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n\n\n\n
                    underscore\ub97c \uc0ac\uc6a9\ud55c\ub2e4\ub294 \uc758\ubbf8\ub294 \ud544\uc694\uc5c6\ub294 \uac83\uc744 \ubc84\ub9b0\ub2e4\ub294 \ub73b\uc774\ub2e4.<\/p>\n\n\n\n
                    \uc989 \uc5ec\uae30\uc11c\ub294 \uccab\ubc88\uc9f8 \uac12(array\uc758 index)\uc744 \ubb34\uc2dc.<\/p>\n\n\n\n
                    Python\uacfc\ub294 \ub2e4\ub974\uac8c _<\/code> \ubcc0\uc218\uc5d0 \uc811\uadfc\uc774 \ubd88\uac00\ub2a5\ud558\ub2e4.<\/p>\n\n\n\n
                    Go\uc5d0\uc11c\ub294 \ubc30\uc5f4\uc744 \uc0dd\uc131\ud558\ub294 \ub354 \uc9e7\uc740 \ubb38\ubc95\ub3c4 \uc544\ub798\uc640 \uac19\uc774 \uc81c\uacf5\ud55c\ub2e4.<\/p>\n\n\n\n
                    package main\n\nimport \"fmt\"\n\nfunc main() {\n        x := [5]float64{ 98, 93, 77, 82, 83 }\n\n        var total float64 = 0\n        for _, value := range x {\n                total += value\n        }\n        fmt.Println(total \/ float64(len(x)))\n}<\/code><\/pre>\n\n\n\n
                    \uc544\ub798\uc640 \uac19\uc774 \uc5ec\ub7ec \uc904\ub85c \ub098\ub220 \uc368\ub3c4 \ub41c\ub2e4.<\/p>\n\n\n\n
                    x := [5]float64{\n    98,\n    93,\n    77,\n    82,\n    83,\n}<\/code><\/pre>\n\n\n\n
                    \ub9c8\uc9c0\ub9c9 \uc904 83, \uc744 \ubcf4\uba74 comma\uac00 \ubd99\uc5b4 \uc788\ub2e4. Go\uc5d0\uc11c\ub294 \uc774\ub807\uac8c \uc0ac\uc6a9\ud574\ub3c4 \ubb38\uc81c\uac00 \uc5c6\ub2e4\uace0 \ud55c\ub2e4.
                    => \uc774\ub294 \ud2b9\uc815 \uc904\uc744 \uc8fc\uc11d \ucc98\ub9ac\ud560\ub54c \ud2b9\ud788 \uc720\uc6a9\ud558\ub2e4.<\/p>\n\n\n\n
                    Cross Compile<\/h2>\n\n\n\n
                    References<\/h2>\n\n\n\n