Go语言-类型断言

通过类型断言实现判断输入参数的类型。

package main
import(
	"fmt"
)
// 编写一个函数，可以判断输入的参数是什么类型
func TypeJudge(items ...interface{}) {
	for index, x := range items {
		switch x.(type) {
			case bool:
				fmt.Printf("第%v个参数是bool类型，值是%v\n", index, x)
			case float32:
				fmt.Printf("第%v个参数是float32类型，值是%v\n", index, x)
			case float64:
				fmt.Printf("第%v个参数是float64类型，值是%v\n", index, x)
			case int, int32, int64:
				fmt.Printf("第%v个参数是int类型，值是%v\n", index, x)
			case string:
				fmt.Printf("第%v个参数是string类型，值是%v\n", index, x)
			default:
				fmt.Printf("第%v个参数类型不确定，值是%v\n", index, x)
		}
	}
}
func main()  {
	var n1 float32 = 1.1
	var n2 float64 = 2.3
	var n3 int32 = 30
	var name string = "tom"
	address := "上海"
	n4 := 300
	TypeJudge(n1, n2, n3, name, address, n4)
}