1.字符 " | "," * "," + "都得加上转义字符，前面加上"\"。2.而如果是""，那么就得写成"\\"。3.如果一个字符串中有多个分隔符，可以用"|"作为连字符。
转载:
https://www.cnblogs.com/tnsay/p/5750644.html