swift-struct

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//  定义一个结构体        struct people {            var name: String            var age: Int            var gender: String        }//   结构体实例化        var people1 = people(name: "zhuang", age: 18, gender: "nan")        people1.name = "李明"        people1.age = 20        people1.gender = "男"        print(people1)        var people2 = people(name: "zhuang", age: 18, gender: "nan")        people2.name = "王凯"        people2.age = 23        print(people2)//    结构体的构造函数与类当中的构造函数相似        struct value {            var weith: Double = 10            var heigth: Double = 10//          成员方法可以访问使用成员属性            func show() {                print("heigth = ?\(weith), weith = \(heigth)")            }            func getHeigth() -> Double {                return weith*heigth            }        }        var value1: value = value()        value1.weith = 15        value1.heigth = 20//      成员方法调用方法 对象.方法（）        value1.show()        value1.getHeigth()

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