正则表达式匹配“大写字母，小写字母，数字，特殊字符”四项中的至少三项
“^(?![a-zA-Z]+$)(?![A-Z0-9]+$)(?![A-Z\\W_!@#$%^&*`~()-+=]+$)(?![a-z0-9]+$)(?![a-z\\W_!@#$%^&*`~()-+=]+$)(?![0-9\\W_!@#$%^&*`~()-+=]+$)[a-zA-Z0-9\\W_!@#$%^&*`~()-+=]{8,30}$”
原文：https://blog.csdn.net/ZYC88888/article/details/80953974
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