golang 字符串翻转

reverse.go

// only support ascii
func reverseString(s string) string {
	b := []byte(s)
	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {
		// switch
		b[i], b[j] = b[j], b[i]
	}

	return string(b)
}