1. Place the dash in the first position
eg: “阿斯顿-打”.matches("[-\u3E00-\u9FA5]+");
2. "" match
java:
"\" will be converted to "\\" after input, so it should match \\\\
eg: Input "\" is converted into "\\".matches("[\\\\]+")；
jsp:
eg: "" is not converted, directly matches "\\"
Problems encountered in regularization during development
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Origin blog.csdn.net/weixin_41858523/article/details/112554089
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