Skip to content

Latest commit

 

History

History
61 lines (42 loc) · 1.86 KB

gofmt.md

File metadata and controls

61 lines (42 loc) · 1.86 KB

gofmt VS go fmt

gofmt

$ gofmt --help // or go doc cmd/gofmt
usage: gofmt [flags] [path ...]
  -cpuprofile string
        write cpu profile to this file
  -d    display diffs instead of rewriting files
  -e    report all errors (not just the first 10 on different lines)
  -l    list files whose formatting differs from gofmt's
  -r string
        rewrite rule (e.g., 'a[b:len(a)] -> a[b:]')
  -s    simplify code
  -w    write result to (source) file instead of stdout

gofmt的参数介绍

  • -l 显示那些需要格式化的文件
  • -w 把改写后的内容直接写入到文件中，而不是作为结果打印到标准输出。
  • -r 添加形如“a[b:len(a)] -> a[b:]”的重写规则，方便我们做批量替换
  • -s 简化文件中的代码
  • -d 显示格式化前后的diff而不是写入文件，默认是false
  • -e 打印所有的语法错误到标准输出。如果不使用此标记，则只会打印不同行的前10个错误。
  • -cpuprofile 支持调试模式，写入相应的cpufile到指定的文件

示例：

$ gofmt -w -l logic //go代码目录
logic\SendcloudLogic.go

go fmt

$ go help fmt //or go fmt --help
usage: go fmt [-n] [-x] [packages]

Fmt runs the command 'gofmt -l -w' on the packages named
by the import paths. It prints the names of the files that are modified.

For more about gofmt, see 'go doc cmd/gofmt'.
For more about specifying packages, see 'go help packages'.

The -n flag prints commands that would be executed.
The -x flag prints commands as they are executed.

To run gofmt with specific options, run gofmt itself.

See also: go fix, go vet.

使用go fmt命令，其实是调用了gofmt

  • 打印将要执行的命令

      $ go fmt -n github.com/lcp0578/smart_lock
  C:\Go\bin\gofmt.exe -l -w main.go

  • 打印出执行的命令

      $ go fmt -x github.com/lcp0578/smart_lock
  C:\Go\bin\gofmt.exe -l -w main.go