测试go语言函数和结构体

测试下函数，可以返回多个值：

报错sum变量声明了没使用。修改下改成下划线

package main import "fmt" func main() { _, str := add(9526, 1) fmt.Println(str) } func add(a,b int)(c int, str string) { c = a + b str = fmt.Sprintf("%d + %d = %d", a, b, c) return }

打印：

ok.

再测试下结构体：

package main import "fmt" func main() { testStruct() } type Person struct { name string nickName string wugong string } func testStruct() { var guojing Person guojing.name = "郭靖" guojing.nickName = "靖哥哥" guojing.wugong = "降龙十八掌" // new创建指针 duanzhengchun := new(Person) duanzhengchun.name = "段正淳" duanzhengchun.nickName = "段郎" duanzhengchun.wugong = "一阳指" zhouzhiruo := &Person{} // 创建实例并取地址，返回指针 zhouzhiruo.name = "周芷若" zhouzhiruo.nickName = "周芷若" zhouzhiruo.wugong = "九阴真经" laoma := Person{ "马老师", "老马", "闪电五连鞭", } fmt.Printf("我是%s, 我擅长%s\n", guojing.nickName, guojing.wugong) fmt.Printf("我是%s, 我擅长%s\n", duanzhengchun.nickName, duanzhengchun.wugong) fmt.Printf("我是%s, 我擅长%s\n", zhouzhiruo.nickName, zhouzhiruo.wugong) fmt.Printf("我是%s, 我擅长%s\n", laoma.nickName, laoma.wugong) }

打印：

ok.