Verify a 26-letter string: ^[a-za-z]+$
Verify a string of 26 uppercase English letters: ^[a-z]+$
Verify a string consisting of 26 lowercase English letters: ^[a-z]+$
Verify a string consisting of numbers and 26 English letters: ^[a-za-z0-9]+$
Verify a string of numbers, 26 English letters, or underscores: ^w+$
Verify user password: ^[a-za-z]w{5,17}$ the correct format is: Start with a letter, length between 6-18, can only contain characters, numbers and underscores.
Verify that it contains ^%& ',; =?$ ' and other characters:[^%& ',; =?$ ']+
Verify Chinese characters: ^[u4e00-u9fa5],{0,}$
Verify email Address: ^w+[-+.] w+) *@w+ ([-.] w+) *.w+ ([-.] w+) *$
Verify interneturl:^http://([w-]+.) +[w-]+ (/[w-./?%&=]*) $ ^[a-za-z]+://(w+ (-w+) *) (. w+ (-w+) *)) * (? s*)? $
Verify phone Number: ^ ((d{3,4}) |d{3,4}-)? d{7,8}$:--the correct format is: xxxx-xxxxxxx,xxxx-xxxxxxxx,xxx-xxxxxxx,xxx-xxxxxxxx,xxxxxxx, xxxxxxxx
Verify ID Number (15-bit or 18-digit number): ^d{15}|d{}18$
Verify 12 months of the year: ^ (0?[ 1-9]|1[0-2]) $ The correct format is: "01"-"09" and "1" "12"
Validation one months of 31 days: ^ (0?[ 1-9]) | ((1|2) [0-9]) $ |30|31) $ The correct format is: 01, 09, and 1, 31.