A. 20涓甯哥敤鐨勬ｅ垯琛ㄨ揪寮
[0-9A-Za-z] {6錛20} 鐢6-20浣嶆暟瀛楁垨榪欏瓧姣嶇粍鎴愩傚尮閰嶈岀粨灝句綅緗銆傛ｅ垯琛ㄨ揪寮忥紝鍙堢О瑙勫垯琛ㄨ揪寮忋傦紙鑻辮錛歊egular Expression錛屽湪浠ｇ爜涓甯哥畝鍐欎負regex銆乺egexp鎴朢E錛夛紝璁＄畻鏈虹戝︾殑涓涓姒傚康銆
姝ｅ垯琛ㄨ揪寮忥細^(錛燂紒[0-9]+$)(錛燂紒[a-zA-Z]+$)[0-9A-Za-z]{6錛20} 姝ｅ垯琛ㄨ揪寮忥紝鍙堢О瑙勫垯琛ㄨ揪寮忋傦紙鑻辮錛歊egular Expression錛屽湪浠ｇ爜涓甯哥畝鍐欎負regex銆乺egexp鎴朢E錛夛紝璁＄畻鏈虹戝︾殑涓涓姒傚康銆
姝ｅ垯鐨勫啓娉曪細[da-zA-Z]+ 鍙浠ュ尮閰 鏁板瓧錛屽ぇ灝忓啓瀛楁瘝 涓鏁版槸鑷沖皯涓涓 鍙﹀栵紝涓嶈佺敤 w+ 鍥犱負w鏄鍖歸厤瀛楁瘝鏁板瓧涓嬪垝綰匡紝澶氫竴涓涓嬪垝綰匡紝涓嶇﹀悎浣犵殑瑕佹眰鐨勩傚叿浣撳畬鏁翠唬鐮侊紝姝ゅ勪笉緇欒創錛屼綘灝辮嚜宸卞啓鍚с
var s = /^[a-z]+[a-za-z0-9_]*$/錛沘lert(s.test(r))錛涜繖涓鍙鑳藉垽鏂鍙鍏佽稿嚭鐜板瓧姣嶆暟瀛椾笅鍒掔嚎錛屽悓鏃朵互灝忓啓瀛楁瘝寮澶達紝浣嗘槸闀垮害娌℃硶鎺у埗銆傜敤姝ｅ垯鏉ュ垽鏂榪欎釜闀垮害搴旇ユ槸涓嶈屼簡銆
1銆佹ｅ垯琛ㄨ揪寮忎竴鑸鐢ㄤ簬澶勭悊鏂囨湰鍐呭癸紝甯哥敤鍛戒護鏈塯rep錛宻ed錛宎wk錛寁im絳 閫氶厤絎︿竴鑸鐢ㄤ簬鍖歸厤鏂囦歡鍚嶏紝甯哥敤鍛戒護鏈塮ind錛宭s錛宑p絳 鍚勭﹀彿鐨勫惈涔変笉灝界浉鍚.浠涔堝湴鏂逛嬌鐢ㄦｅ垯琛ㄨ揪寮 vim grep sed awk nginx apache mail鍨冨溇閭浠惰繃婊ゃ
2銆佷互涓嬪氨鏄瀵硅秴甯哥敤鐨凱HP姝ｅ垯琛ㄨ揪寮忚繘琛岀殑鏀墮泦鏁寸悊錛屼負浜嗘柟渚垮ぇ瀹舵洿蹇鏇村ソ鐨勬帉鎻php姝ｅ垯琛ㄨ揪寮忋
3銆丗lags 鍐欏湪緇撴潫鐨/涔嬪悗錛屽彲浠ュ獎鍝嶆暣涓姝ｅ垯琛ㄨ揪寮忕殑鍖歸厤琛屼負銆
姝ｅ垯琛ㄨ揪寮忥紝鍙堢О瑙勫垯琛ㄨ揪寮忋傛槸璁＄畻鏈虹戝︾殑涓涓姒傚康銆傛ｅ垯琛ㄨ揪寮忛氬父琚鐢ㄦ潵媯緔銆佹浛鎹㈤偅浜涚﹀悎鏌愪釜妯″紡(瑙勫垯)鐨勬枃鏈銆傝稿氱▼搴忚捐¤璦閮芥敮鎸佸埄鐢ㄦｅ垯琛ㄨ揪寮忚繘琛屽瓧絎︿覆鎿嶄綔銆備緥濡傦紝鍦≒erl涓灝卞唴寤轟簡涓涓鍔熻兘寮哄ぇ鐨勬ｅ垯琛ㄨ揪寮忓紩鎿庛
姝ｅ垯琛ㄨ揪寮(鑻辨枃錛歊egular Expression)錛屽湪璁＄畻鏈虹戝︿腑錛屾槸鎸囦竴涓鐢ㄦ潵鎻忚堪鎴栬呭尮閰嶄竴緋誨垪絎﹀悎鏌愪釜鍙ユ硶瑙勫垯鐨勫瓧絎︿覆鐨勫崟涓瀛楃︿覆銆傚湪寰堝氭枃鏈緙栬緫鍣ㄦ垨鍏朵粬宸ュ叿閲岋紝姝ｅ垯琛ㄨ揪寮忛氬父琚鐢ㄦ潵媯緔㈠拰/鎴栨浛鎹㈤偅浜涚﹀悎鏌愪釜妯″紡鐨勬枃鏈鍐呭廣
姝ｅ垯琛ㄨ揪寮忥紝鍙堢О瑙勫垯琛ㄨ揪寮忋傦紙鑻辮錛歊egular Expression錛屽湪浠ｇ爜涓甯哥畝鍐欎負regex銆乺egexp鎴朢E錛夛紝璁＄畻鏈虹戝︾殑涓涓姒傚康銆傛ｅ垯琛ㄨ揪寮忛氬父琚鐢ㄦ潵媯緔銆佹浛鎹㈤偅浜涚﹀悎鏌愪釜妯″紡(瑙勫垯)鐨勬枃鏈銆
js甯哥敤姝ｅ垯琛ㄨ揪寮忔暣鏁版垨鑰呭皬鏁幫細^[0-9]+.{0錛1}[0-9]{0錛2}$鍙鑳借緭鍏ユ暟瀛楋細^[0-9]*$銆傚彧鑳借緭鍏n浣嶇殑鏁板瓧錛歗d{n}$銆傚彧鑳借緭鍏ヨ嚦灝憂浣嶇殑鏁板瓧錛歗d{n錛寎$銆傚彧鑳借緭鍏m~n浣嶇殑鏁板瓧錛氥
浠ヤ笅灝辨槸瀵硅秴甯哥敤鐨凱HP姝ｅ垯琛ㄨ揪寮忚繘琛岀殑鏀墮泦鏁寸悊錛屼負浜嗘柟渚垮ぇ瀹舵洿蹇鏇村ソ鐨勬帉鎻php姝ｅ垯琛ㄨ揪寮忋
姝ｅ垯琛ㄨ揪寮忔槸涓縐嶆弿榪板瓧絎︿覆緇撴灉鐨勮娉曡勫垯錛屾槸涓涓鐗瑰畾鐨勬牸寮忓寲妯″紡錛屽彲浠ュ尮閰嶃佹浛鎹銆佹埅鍙栧尮閰嶇殑瀛楃︿覆銆傚父鐢ㄧ殑璇璦鍩烘湰涓婇兘鏈夋ｅ垯琛ㄨ揪寮忥紝濡侸avaScript銆乯ava絳夈
浠ヤ笅灝辨槸瀵硅秴甯哥敤鐨凱HP姝ｅ垯琛ㄨ揪寮忚繘琛岀殑鏀墮泦鏁寸悊錛屼負浜嗘柟渚垮ぇ瀹舵洿蹇鏇村ソ鐨勬帉鎻php姝ｅ垯琛ㄨ揪寮忋
錛歖*$錛乗鏄瀵筽hp涓鍗曞紩鍙風殑杞涔夈傛垨鑰呰繕鏈夋洿綆鍗曠殑 錛乛/錛焄a-z0-9 =錛歖*$錛乮 i琛ㄧず蹇界暐澶у皬鍐欍傛ā寮忓垎闅旂﹀氨鏄涓轟簡鍖哄垎琛ㄨ揪寮忓拰鍍廼榪欐牱鐨勬ā寮忎慨楗扮﹁岃捐＄殑銆
浠涔堟槸姝ｅ垯琛ㄨ揪寮忥細綆鍗曠殑璇達紝姝ｅ垯琛ㄨ揪寮忔槸涓縐嶅彲浠ョ敤浜庢ā寮忓尮閰嶅拰鏇挎崲鐨勫己澶у伐鍏楓傚湪鍑犱箮鎵鏈夌殑鍩轟簬UNIX/LINUX緋葷粺鐨勮蔣浠跺伐鍏蜂腑鎵懼埌姝ｅ垯琛ㄨ揪寮忕殑鐥曡抗錛屼緥濡傦細Perl鎴朠HP鑴氭湰璇璦銆
ThinkPHP鐨勮嚜鍔ㄩ獙璇佸父鐢ㄧ殑姝ｅ垯 涓鑸鎴戜滑瑙佺殑姣旇緝澶氱殑鏄璁劇疆瑙勫垯涓簉equire銆乪mail涔嬬被鐨勶紝鍏跺疄榪欎簺鏈韜涔熸槸灞炰簬姝ｅ垯琛ㄨ揪寮忛獙璇佹柟寮忥紝鍙鏄緋葷粺鍐呯疆瀹氫箟浜嗕竴浜涘父鐢ㄧ殑姝ｅ垯琛ㄨ揪寮忚屽凡銆
鍏抽敭鍦版柟鏄奼夊瓧鐨勮〃紺篭xa0-xff銆備笅闈㈡槸鎴戝啓鐨勪緥瀛愮▼搴忥紝璋冭瘯閫氳繃錛氾紵php str=奼夊瓧123456abcdef+-*/ABCDE錛丂#$%^&*()緇撳熬銆
1銆乗w灝辨槸鍖歸厤瀛楁瘝鎴栨暟瀛楁垨涓嬪垝綰挎垨奼夊瓧錛+鍒欎笌*宸涓嶅氾紝鍖哄埆鏄+鍖呮嫭閲嶅0嬈★紝鑰*灝卞彲浠ャ=灝眜shi鍖歸厤=鍙 涓や釜鏂滄潬鍒欒〃紺烘ｅ垯琛ㄨ揪寮忕殑鍒嗙晫銆
2銆佹ｅ垯琛ㄨ揪寮忕殑闄愬畾絎︽湁錛歍hinkPHP鐨勮嚜鍔ㄩ獙璇佹満鍒舵槸涓轟簡榪涜岃〃鍗曟暟鎹楠岃瘉錛岄獙璇佸彲浠ユ敮鎸乫unction銆 callback銆乧onfirm銆乪qual銆乽nique鍜宺egex錛岃繖閲岃佽茬殑鏄浣跨敤姝ｅ垯琛ㄨ揪寮忚繘琛岄獙璇併傜壒孌婂瓧絎 璁稿氬厓瀛楃﹁佹眰鍦ㄨ瘯鍥懼尮閰嶅畠浠鏃剁壒鍒瀵瑰緟銆
3銆乛/錛焄a-zA-Z0-9 =錛歖*$錛乗鏄瀵筽hp涓鍗曞紩鍙風殑杞涔夈傛垨鑰呰繕鏈夋洿綆鍗曠殑 錛乛/錛焄a-z0-9 =錛歖*$錛乮 i琛ㄧず蹇界暐澶у皬鍐欍傛ā寮忓垎闅旂﹀氨鏄涓轟簡鍖哄垎琛ㄨ揪寮忓拰鍍廼榪欐牱鐨勬ā寮忎慨楗扮﹁岃捐＄殑銆