1 引言
用windows自带的text文本在最前面会带入看不到的BOM,导致异常
2 代码
package main import ( "strings" "fmt" ) func main(){ line := "// mysql数据库链接配置" if strings.EqualFold(line[:2], "//"){ fmt.Println("this is comment") }else{ fmt.Println("this is not comment") } }
运行结果如下:
# command-line-arguments test est estFilterRemark.go:17:11: invalid BOM in the middle of the file Compilation finished with exit code 2
如果改为:(在文本上是看不出差异性的)
func main(){ line := "// mysql数据库链接配置" if strings.EqualFold(line[:2], "//"){ fmt.Println("this is comment") }else{ fmt.Println("this is not comment") } }
运行结果如下:
this is comment Process finished with exit code 0
3.扩展资料
1.不要使用Windows自带记事本写代码( http://rabbitfeet.net/archives/144.html)