1. 设计在数组中查找数据模板函数

函数名: SeqSearch

参数名及顺序: 数组:list, 数据:key, 个数:n

返回: 成功:数据在数中的下标,失败: -1-1 designed to find the data in the array template function function name: SeqSearch parameter names and order: Array: list, data: key, number: n Returns: Success: Data on the number of the next standard, failed:-1