文件名称：指定特殊字符不能使用
文件大小：1KB
文件格式：TXT
更新时间：2013-11-18 04:11:07
指定特殊字符不能使用
function validate(str){ var illegalChars = ['*','-'];//指定的特殊字符写在这个数组里面，个数不限。 str = str.value; var numberCount = 0; var upperCaseCount = 0; var lowerCaseCount = 0; var otherCharCount = 0; var numberIndex = 0; var upperCaseIndex = 0; var lowerCaseIndex = 0; var otherCharIndex = 0; var temp; for (var i = 0; i < str.length; i++) { temp = str.charAt(i); for(var j = 0; j < illegalChars.length; j++){ if(temp == illegalChars[j]){ return false; } } temp = temp.charCodeAt(); if (temp >= 48 && temp <= 57) { numberIndex = i; numberCount++; }else if(temp >= 65 && temp <= 90){ upperCaseIndex = i; upperCaseCount++; }else if(temp >= 97 && temp <= 122){ lowerCaseIndex = i; lowerCaseCount++; }else{ otherCharIndex = i; otherCharCount++; } } if (numberCount == 0 || (numberCount == 1 && (numberIndex == 0 || numberIndex == str.length-1 ))) { return false; } if (upperCaseCount == 0 || (upperCaseCount == 1 && (upperCaseIndex == 0 || upperCaseIndex == str.length-1 ))) { return false; } if (lowerCaseCount == 0 || (lowerCaseCount == 1 && (lowerCaseIndex == 0 || lowerCaseIndex == str.length-1 ))) { return false; } if (otherCharCount == 0 || (otherCharCount == 1 && (otherCharIndex == 0 || otherCharIndex == str.length-1 ))) { return false; } return true; }