HslHelperExtractParameter 方法

解析地址的附加参数方法，比如你的地址是s=100;D100，可以提取出"s"的值的同时，修改地址本身，如果"s"不存在的话，返回错误的消息内容
The method of parsing additional parameters of the address, for example, if your address is s=100;D100, you can extract the value of "s" and modify the address itself. If "s" does not exist, return the wrong message content

解析地址的附加参数方法，比如你的地址是s=100;D100，可以提取出"s"的值的同时，修改地址本身，如果"s"不存在的话，返回给定的默认值
The method of parsing additional parameters of the address, for example, if your address is s=100;D100, you can extract the value of "s" and modify the address itself. If "s" does not exist, return the given default value