上述代码中用到File.ReadAllLines()函数，适用于读取较小的文本文档，一次性将全部文本文档内容放入字符串数组contents中，每一行作为contents这个字符串数组的一个元素，下面的循环实现了对contents的遍历，遍历的过程中通过split函数对每个元素按空格或者是制表符进行分割，contents的每个元素被按照空格或制表符分割后返回一个新的字符串数组，放入到新定义的strNew这个字符串数组中，之后输出。



下一步要计算总价格。-The code used in File.ReadAllLines () function for reading small text document, at once the entire content of a text string into the array contents, each row of the array of strings as the contents of an element, the following the cycle realized the contents of the traversal, traversal process for each element by spaces or tabs are divided by split function, each element contents are returned after a new string in accordance with a space or tab-delimited array, placed in the newly defined strNew this string array, and then output. Next step is to calculate the total price.