The interactive environment is VERY helpful for a programmer. However, it seems Go does not provide it. Is my understanding correct?
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- duan7007 2011-12-15 08:53关注
No, Go does not provide a REPL.
However, as already mentioned, Go Playground (this is the new URL) is very handy. The Go Authors are also thinking about adding a feature-rich editor to it.
If you want something local, consider installing hsandbox. Running it simply with
hsandbox go
will split your terminal screen (withscreen
) where you can write code at the top and see its execution output at the bottom on every save.There was a
gotry
among standard Go commands, which used to evaluate expressions (with an optional package name), and could be run likegotry 1+2
andgotry fmt 'Println("hello")'
from shell. It is no longer available because not many people actually used it.I have also seen third party projects for building a REPL for Go, but now I can only find links to two of them: igo and go-repl. How well do they work I don't know.
My two cents: Speed of compilation makes writing a REPL possible for Go, as it has also helped building the tools mentioned here, but the same speed makes REPL less necessary. Every time I want to test something in Go that I can't run in Playground I open a simple
.go
file and start coding and simply run the code. This will be even easier when thego
command in Go 1 makes one-command build process possible and way easier.UPDATE: Latest weekly release of Go added
go
command which can be used to very easily build a file: write yourprog.go
file and rungo build prog.go && ./prog
UPDATE 2: With Go 1 you can directly run go programs with
go run filename.go
UPDATE 3:
gore
is a new project which seems interesting.本回答被题主选为最佳回答 , 对您是否有帮助呢?解决 无用评论 打赏 举报
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