参考资料摘录20130611_1（Reference excerpt 20130611_1）.docVIP

参考资料摘1（Reference excerpt1） # usually website often use regular expressions, here are some explanations and examples for your reference and modify the use of: # ^\d+$ / / non negative integer (integer + 0) # ^[0-9]*[1-9][0-9]*$ / / positive integer # ^ ((-\d+) | (0+)) $/ / non positive integer (negative integer + 0) # ^-[0-9]*[1-9][0-9]*$ / / negative integer # ^ - \d+$? / / integer # ^\d+ (\.\d+)? $/ / non negative floating-point numbers (positive floating-point number + 0) # ^ (([0-9]+\.[0-9]*[1-9][0-9]*) | ([0-9]*[1-9][0-9]*\.[0-9]+) | ([0-9]*[1-9][0-9]*)) / / is $ float # ^ ((-\d+ (\.\d+) | (?) 0+ (\.0+)?)) / $ positive floating-point (negative floating-point number + 0) # ^ (- (([0-9]+\.[0-9]*[1-9][0-9]*) | ([0-9]*[1-9][0-9]*\.[0-9]+) | ([0-9]*[1-9][0-9]*))) / / $ negative float # ^ (-? \d+) (\.\d+)? $/ float # ^[A-Za-z]+$ / / by 26 English letter string # / ^[A-Z]+$ consists of 26 letters of English consisting of strings # ^[a-z]+$ / / by 26 English lowercase letters consisting of strings # ^[A-Za-z0-9]+$ / / by numbers and 26 English letter string # ^\w+$ / / 26 English by numbers, letters or underscores the string # ^[\w-]+ (\.[\w-]+) *@[\w-]+ (\.[\w-]+) +$ //email. # ^[a-zA-z]+: / / (\w+ (-\w+) (. *) (\w+ (-\w+) (* *)) \ $//url? \S*)? # / ^ (d{2}|d{4}) - ((0 ([1-9]{1}) |) (1[1|2]) (([0-2]) - ([1-9]{1})) | (3[0|1])) / / / year month day # / ^ ((0 ([1-9]{1}) |) (1[1|2]) (([0-2]) / ([1-9]{1})) | (3[0|1])) / (d{2}|d{4}) / / / month / day / year # ^ ([w-.]+) @ (([[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.) | (([w-]+.) +)) ([a-zA-Z]{2,4}|[0-9]{1,3}) (?) $//Emil # / ^ (([0-9]{2,4}\-[0-9]{3,4}\- \ + acts?) | ([0-9]{3,4}\-))? ([0-9]{7,8}) (\-[0-9]+) / / / telephone number? # ^ (d{1,2}|1dd|2[0-4]d|25[0-5]). (d{1,2}|1dd|2[0-4]d|25[0-5]). (d{1,2}|1dd|2[0-4]d|25[0-5]). (d{1,2}|1dd|2[0-4]d|25[0-5]) $//IP. # # regular expression matching Chinese characters: [\u4e00-\u9fa5] #, double byte characters (including Chinese characters,:[^\x00-\xff]) # regular expressio