Go语法之switch
2019/2/23小于 1 分钟
第一种写法 ------ switch x
注意:switch会自动break,除非使用fallthrough
[go]func branch(a, b int, op string) int { var result int switch op { case "+": result = a + b case "-": result = a - b case "*": result = a * b case "/": result = a / b default: panic("unexpected op:" + op) } fmt.Println(result) return result }[/go]
第二种写法 ------ switch后直接写花括号
[go]func grade(score int) string { g := "" switch { case score < 0 || score > 100: panic(fmt.Sprintf( "Wrong score: %d", score)) case score < 60: g = "F" case score < 80: g = "C" case score < 90: g = "B" case score <= 100: g = "A" } return g }[/go]