把一个字符串里符合表情文字标签的地方全部替换为相应的图片的方法

1、表情数据：

var emotion =[
            {"name": "Expression_1","text": "[微笑]"},
            {"name": "Expression_2","text": "[撇嘴]"},
            {"name": "Expression_3","text": "[色]"},
            {"name": "Expression_4","text": "[发呆]"},
            {"name": "Expression_5","text": "[得意]"},
            {"name": "Expression_6","text": "[流泪]"},
            {"name": "Expression_7","text": "[害羞]"},
            {"name": "Expression_8","text": "[闭嘴]"},
            {"name": "Expression_9","text": "[睡]"},
            {"name": "Expression_10","text": "[大哭]"},
            {"name": "Expression_11","text": "[尴尬]"},
            {"name": "Expression_12","text": "[发怒]"},
            {"name": "Expression_13","text": "[调皮]"},
            {"name": "Expression_14","text": "[呲牙]"},
            {"name": "Expression_15","text": "[惊讶]"},
            {"name": "Expression_16","text": "[难过]"},
            {"name": "Expression_17","text": "[酷]"},
            {"name": "Expression_18","text": "[冷汗]"},
            {"name": "Expression_19","text": "[抓狂]"},
            {"name": "Expression_20","text": "[吐]"},
            {"name": "Expression_21","text": "[偷笑]"},
            {"name": "Expression_22","text": "[愉快]"},
            {"name": "Expression_23","text": "[白眼]"},
            {"name": "Expression_24","text": "[傲慢]"},
            {"name": "Expression_25","text": "[饥饿]"},
            {"name": "Expression_26","text": "[困]"},
            {"name": "Expression_27","text": "[恐惧]"},
            {"name": "Expression_28","text": "[流汗]"},
            {"name": "Expression_29","text": "[憨笑]"},
            {"name": "Expression_30","text": "[悠闲]"},
            {"name": "Expression_31","text": "[奋斗]"},
            {"name": "Expression_32","text": "[咒骂]"},
            {"name": "Expression_33","text": "[疑问]"},
            {"name": "Expression_34","text": "[嘘]"},
            {"name": "Expression_35","text": "[晕]"},
            {"name": "Expression_36","text": "[疯了]"},
            {"name": "Expression_37","text": "[衰]"},
            {"name": "Expression_38","text": "[骷髅]"},
            {"name": "Expression_39","text": "[敲打]"},
            {"name": "Expression_40","text": "[再见]"},
            {"name": "Expression_41","text": "[擦汗]"},
            {"name": "Expression_42","text": "[抠鼻]"},
            {"name": "Expression_43","text": "[鼓掌]"},
            {"name": "Expression_44","text": "[糗大了]"},
            {"name": "Expression_45","text": "[坏笑]"},
            {"name": "Expression_46","text": "[左哼哼]"},
            {"name": "Expression_47","text": "[右哼哼]"},
            {"name": "Expression_48","text": "[哈欠]"},
            {"name": "Expression_49","text": "[鄙视]"},
            {"name": "Expression_50","text": "[委屈]"},
            {"name": "Expression_51","text": "[快哭了]"},
            {"name": "Expression_52","text": "[阴险]"},
            {"name": "Expression_53","text": "[亲亲]"},
            {"name": "Expression_54","text": "[吓]"},
            {"name": "Expression_55","text": "[可怜]"},
            {"name": "Expression_56","text": "[菜刀]"},
            {"name": "Expression_57","text": "[西瓜]"},
            {"name": "Expression_58","text": "[啤酒]"},
            {"name": "Expression_59","text": "[篮球]"},
            {"name": "Expression_60","text": "[乒乓]"},
            {"name": "Expression_61","text": "[咖啡]"},
            {"name": "Expression_62","text": "[饭]"},
            {"name": "Expression_63","text": "[猪头]"},
            {"name": "Expression_64","text": "[玫瑰]"},
            {"name": "Expression_65","text": "[凋谢]"},
            {"name": "Expression_66","text": "[嘴唇]"},
            {"name": "Expression_67","text": "[爱心]"},
            {"name": "Expression_68","text": "[心碎]"},
            {"name": "Expression_69","text": "[蛋糕]"},
            {"name": "Expression_70","text": "[闪电]"},
            {"name": "Expression_71","text": "[炸弹]"},
            {"name": "Expression_72","text": "[刀]"},
            {"name": "Expression_73","text": "[足球]"},
            {"name": "Expression_74","text": "[瓢虫]"},
            {"name": "Expression_75","text": "[便便]"},
            {"name": "Expression_76","text": "[月亮]"},
            {"name": "Expression_77","text": "[太阳]"},
            {"name": "Expression_78","text": "[礼物]"},
            {"name": "Expression_79","text": "[拥抱]"},
            {"name": "Expression_80","text": "[强]"},
            {"name": "Expression_81","text": "[弱]"},
            {"name": "Expression_82","text": "[握手]"},
            {"name": "Expression_83","text": "[胜利]"},
            {"name": "Expression_84","text": "[抱拳]"},
            {"name": "Expression_85","text": "[勾引]"},
            {"name": "Expression_86","text": "[拳头]"},
            {"name": "Expression_87","text": "[差劲]"},
            {"name": "Expression_88","text": "[爱你]"},
            {"name": "Expression_89","text": "[NO]"},
            {"name": "Expression_90","text": "[OK]"},
            {"name": "Expression_91","text": "[爱情]"},
            {"name": "Expression_92","text": "[飞吻]"},
            {"name": "Expression_93","text": "[跳跳]"},
            {"name": "Expression_94","text": "[发抖]"},
            {"name": "Expression_95","text": "[怄火]"},
            {"name": "Expression_96","text": "[转圈]"},
            {"name": "Expression_97","text": "[磕头]"},
            {"name": "Expression_98","text": "[回头]"},
            {"name": "Expression_99","text": "[跳绳]"},
            {"name": "Expression_100","text": "[投降]"},
            {"name": "Expression_101","text": "[激动]"},
            {"name": "Expression_102","text": "[街舞]"},
            {"name": "Expression_103","text": "[献吻]"},
            {"name": "Expression_104","text": "[左太极]"},
            {"name": "Expression_105","text": "[右太极]"}
    ]

2、有一个字符串strCont="[微笑]不要说人家啦！[撇嘴]人家好[害羞]啊"

3、批量替换方法：

/批量替换方法
function ReCont(strCont) {
    for (var i in emotion) {        
        var item = emotion[i];
        var strimg='<img src="../image/emotion/'+item.name+'.png" width="24" height="24" align="absmiddle">';
        var reg=new RegExp("\\"+item.text,"g");
        //alert(reg);
        strCont=strCont.replace(reg, strimg);
        //alert(strCont);
    }    
    return strCont;
}

然后使用：newContent=ReCont(strCont)就可以把表情标签更换为图片了。

另插入小说明：在js里插入特殊字符：

下面的表格列出了其余的特殊字符，这些特殊字符都可以使用反斜杠来添加到文本字符串中：

代码 输出

\’ 单引号

\" 双引号

\& 和号

\\ 反斜杠

\n 换行符

\r 回车符

\t 制表符

\b 退格符