Swift 数组

var shop: [String] = ["1","2","3"]shop.append("4")shop += ["5","6","7"]print("\(shop)")//count属性:计算数组个数print("数组个数:\(shop.count)")

//数组元素的插入//insert(插入的元素,atIndex:插入的坐标)shop.insert("8", atIndex: 1)print("插入后:\(shop)")

//数组删除//根据坐标删除let maple = shop.removeAtIndex(1)print("删除后:\(shop)")

//数组遍历//遍历方法一for item in shop {    print("item:",item)}//遍历方法二//利用enumerate()方法for (index, value) in shop.enumerate() {    print("Item \(index + 1) : \(value)")}