我找到了一个解决方案，使用带有ascii代码的string.gsub而不是字符本身可以解决此问题.对于遇到相同问题的人:

I have found a solution, Using string.gsub with the ascii code instead of the character itself solves the problem. For those who encounter the same problem:

newstring = string.gsub(string, "[\10]", "")

这将删除换行符，并允许从此开始进行字符串匹配.

This removes the line feed and allows string matching henceforth.