慕沐林林
您最好进行分割-并测试所有元素。但是,如果您真的想使用正则表达式,可以尝试以下一种:/^(?:(?:31-(?:(?:0?[13578])|(1[02]))-(19|20)?\d\d)|(?:(?:29|30)-(?:(?:0?[13-9])|(?:1[0-2]))-(?:19|20)?\d\d)|(?:29-0?2-(?:19|20)(?:(?:[02468][048])|(?:[13579][26])))|(?:(?:(?:0?[1-9])|(?:1\d)|(?:2[0-8]))-(?:(?:0?[1-9])|(?:1[0-2]))-(?:19|20)?\d\d))$/说明:^ # start of line (?: # group without capture # that match 31st of month 1,3,5,7,8,10,12 (?: # group without capture 31 # number 31 - # dash (?: # group without capture (?: # group without capture 0? # number 0 optionnal [13578] # one digit either 1,3,5,7 or 8 ) # end group | # alternative (1[02]) # 1 followed by 0,1 or 2 ) # end group - # dash (19|20)? #numbers 19 or 20 optionnal \d\d # 2 digits from 00 to 99 ) # end group| (?:(?:29|30)-(?:(?:0?[13-9])|(?:1[0-2]))-(?:19|20)?\d\d)| (?:29-0?2-(?:19|20)(?:(?:[02468][048])|(?:[13579][26])))| (?:(?:(?:0?[1-9])|(?:1\d)|(?:2[0-8]))-(?:(?:0?[1-9])|(?:1[0-2]))-(?:19|20)?\d\d) )$我已经解释了第一部分,其余部分留作练习。此匹配一个无效日期:29-02-1900但对于介于01-01-1900和之间的任何日期都是正确的31-12-2099