# Iterative迭代用法示例，这是一个与 Iterative相关的实例，演示迭代的使用，思路和过程：创建一个string类型的数组用于存储银行种类，对IEnumerator接口实现GetEnumerator方法创建迭代器，使用for语句循环数组-# Iterative iterative usage examples, which is associated with Iterative instance, demonstrates the use of iteration, ideas and processes: Create a string array for storing the types of banks, the IEnumerator interface GetEnumerator method to create an iterator, use the for loop array