从一个in文件读取字符串，然后匹配字符串中的网址，并把网址用另一个字符串替换，然后这个字符串后跟着一个数字，这个数字表示该字符串中出现的第几个网址。-In file read　a string, then the string matching the URL, and replace the URL with another string, and then after that string followed by a number, this number represents the string that appears in the first few URL.