JavsScript正则表达式选录

分别匹配元音字母

    var reg = new Array(6);
    reg[1] = new RegExp(/a/, 'ig');
    reg[2] = new RegExp(/e/, 'ig');
    reg[3] = new RegExp(/i/, 'ig');
    reg[4] = new RegExp(/o/, 'ig');
    reg[5] = new RegExp(/u/, 'ig');

    for (var i = 1; i <= 5; i++) {
        var matchCount = words.match(reg[i]);
        if (matchCount)
            score += (matchCount.length)*i;
    }
    alert("Score:"+score);

**统计字母、数字和其他字符 **

    var regChar = new RegExp(/[a-z]/, 'g');
    var regNum = new RegExp(/\d/, 'ig');
    var regOther = new RegExp(/[^a-z0-9]/, 'ig');