Golang实现获取文件的后缀名(扩展名)

path.Ext()

代码实现如下：

package main
 
import (
	"path"
	"fmt"
)
 
func main(){
	
	filepath := "C:\\Users\\Administrator\\Desktop\\user_agents.py"
	fileExt := path.Ext(filepath)
	fmt.Println(fileExt)
}

通过这个方法来判断文件的后缀名很方便；

.bmp

package main
 
import (
	"path"
	"fmt"
)
 
func main(){
	
	filepath := "C:\\Users\\Administrator\\Desktop\\user_agents.py"
	fileExt := path.Ext(filepath)
	if fileExt != ".bmp"{
		fmt.Println("file type must be bmp")
	}
	// ...
}