下面給大家分享HTML用正則表達(dá)式檢驗(yàn)表格的實(shí)例代碼,具體代碼內(nèi)容如下所示:
<span style="font-size:24px;color:#cc6600;"> 正則表達(dá)式在JavaScript腳本中是很好用的檢驗(yàn)語(yǔ)法規(guī)則的方法。但是與Java中的正則表達(dá)式有所不同。它需要在regex規(guī)則上以“^”開(kāi)始,以"$"結(jié)束。</span>
<span style="font-size:24px;color:#cc6600;">以下讓我們看看一個(gè)實(shí)例。</span>
<span style="font-size:18px;"><!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> form table tr td{ border: 1px solid lightgrey; text-align: center; } form table tr td input{ width: 97%; } </style> <script language="JavaScript" type="text/javascript"> //判斷規(guī)則(正則表達(dá)式) function goto() { var name = document.getElementById("name"); var pwd = document.getElementById("pwd"); var pwd2 = document.getElementById("pwd2"); var pnum = document.getElementById("pnum"); var phone = document.getElementById("phone"); var telephone = document.getElementById("telephone"); var email = document.getElementById("email"); if (name.value.trim().length<=8){ alert("用戶名長(zhǎng)度必須大于八位"); name.focus() name.value=""; return; } // 規(guī)則必須包括大小寫(xiě)字母,數(shù)字 var regex = /^(?!(?:\d+|[a-zA-Z]+|[\da-z]+|[\dA-Z])$)[\da-zA-Z]{6,}$/; // var regex = /^[A-z0-9]{10,20}$/; if ( !pwd.value.match(regex)){ alert("密碼不符合規(guī)定"); pwd.focus() pwd.value=""; return; } if (pwd.value != pwd2.value){ alert("兩次輸入的密碼不相同"); pwd2.focus() pwd.value=""; pwd2.value=""; return; } var rege=/^\d{17}X$|^\d{15}$/; if (!rege.test(pnum.value)){ alert("身份證不符合規(guī)定"); pnum.focus() pnum.value=""; return; } var regex2 = /^\d{4}-\d{7}$/;//判斷座機(jī)號(hào) if (!regex2.test(phone.value)){ alert("座機(jī)號(hào)碼不符合規(guī)定"); phone.focus() phone.value=""; return; } var regex3 = /^1[3,5,7,8]\d{9}$/; if (!regex3.test(telephone.value)){ alert("手機(jī)號(hào)碼不符合規(guī)定"); telephone.focus() telephone.value=""; return; } //test方法必須用反斜杠轉(zhuǎn)義 var regex4 = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/; if (!regex4.test(email.value)){ alert("郵箱不符合規(guī)定"); email.focus() email.value=""; return; } } </script> </head> <body> <form> <table style="width:600px;height: 300px;border: 1px solid lightgrey"> <tr> <td width="18%">登錄名:</td> <td><input id="name"type="text"></td> <td width="50%">長(zhǎng)度大于八位</td> </tr> <tr> <td>登錄密碼:</td> <td><input id="pwd"type="password"></td> <td>長(zhǎng)度大于十位,包含字母數(shù)字</td> </textarea></td> </tr> <tr> <td>確認(rèn)密碼:</td> <td><input id="pwd2" type="password"></td> </tr> <tr> <td>身份證號(hào)碼:</td> <td><input id="pnum" type="text"></td> <td>15位或18位最后一個(gè)是X</td> </tr> <tr> <td>固定電話:</td> <td><input id="phone"type="text"></td> <td>格式xxxx-xxxxxxx</td> </tr> <tr> <td>手機(jī)號(hào)碼:</td> <td><input id="telephone"type="text"></td> <td>11位整數(shù)</td> </tr> <tr> <td>電子郵件:</td> <td><input id="email"type="text"></td> <td>xxxx@xxx.xxx xxx@xxx.xxx.xx</td> </tr> <tr> <td>現(xiàn)居住地:</td> <td><select> <option>--選擇省份--</option> <option>北京</option> <option>河北</option> <option>廣西</option> </select></td> <td><select> <option>--選擇城市--</option> <option>煙臺(tái)</option> <option>青島</option> <option>哈爾濱</option> </select></td> </tr> <tr> <td colspan="1"></td> <td><input id="submit" type="button" value="提交注冊(cè)信息" style="width: 100px" onclick="goto()"></td> <td><input type="reset" value="重置" style="width: 60px"></td> </tr> </table> </form> </body> </html></span>
附:一些常使用的規(guī)則:
"^\\d+$" //非負(fù)整數(shù)(正整數(shù) + 0)
"^[0-9]*[1-9][0-9]*$" //正整數(shù)
"^((-\\d+)|(0+))$" //非正整數(shù)(負(fù)整數(shù) + 0)
"^-[0-9]*[1-9][0-9]*$" //負(fù)整數(shù)
"^-?\\d+$" //整數(shù)
"^\\d+(\\.\\d+)?$" //非負(fù)浮點(diǎn)數(shù)(正浮點(diǎn)數(shù) + 0)
"^(([0-9]+\\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\\.[0-9]+)|([0-9]*[1-9][0-9]*))$" //正浮點(diǎn)數(shù)
"^((-\\d+(\\.\\d+)?)|(0+(\\.0+)?))$" //非正浮點(diǎn)數(shù)(負(fù)浮點(diǎn)數(shù) + 0)
"^(-(([0-9]+\\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\\.[0-9]+)|([0-9]*[1-9][0-9]*)))$" //負(fù)浮點(diǎn)數(shù)
"^(-?\\d+)(\\.\\d+)?$" //浮點(diǎn)數(shù)
"^[A-Za-z]+$" //由26個(gè)英文字母組成的字符串
"^[A-Z]+$" //由26個(gè)英文字母的大寫(xiě)組成的字符串
"^[a-z]+$" //由26個(gè)英文字母的小寫(xiě)組成的字符串
"^[A-Za-z0-9]+$" //由數(shù)字和26個(gè)英文字母組成的字符串
"^\\w+$" //由數(shù)字、26個(gè)英文字母或者下劃線組成的字符串
"^[\\w-]+(\\.[\\w-]+)*@[\\w-]+(\\.[\\w-]+)+$" //email地址
"^[a-zA-z]+://(\\w+(-\\w+)*)(\\.(\\w+(-\\w+)*))*(\\?\\S*)?$" //url