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仅支持中英文和数字,字数不超过4个汉字或8个字母的正则该怎么写呢?

微信公众号菜单名字的规范要求“仅支持中英文和数字,字数不超过4个汉字或8个字母”。

其中一个汉字占俩字符,数字和英文是一个字符,像中英数字混合的比如“哈哈12b”正好8个字符是可以的。

image

求教这个正则咋写啊


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by (71.8m points)

一个正则写不出来,匹配出所有中文和所有英文数字然后计算吧。


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