写了一个最简单的 js 模板引擎，直接贴代码

来源：互联网发布：安卓蓝牙通信源码编辑：程序博客网时间：2024/06/08 04:19

<!DOCTYPE html><html lang="zh-cn"><head>    <meta charset="UTF-8">    <title>test</title>    <script src="../js/jquery/jquery-3.1.1.js"></script></head><body><div id="ab"></div><script type="text/html" id="tpl">    {{        for(var i in data.users){            var user=data.users[i];    }}    <p>{{r+=user.user;}}</p>    {{ } }}</script><script>    var data={users:[{user:'wym'},{user:'xjm'}]};    var tpl=$('#tpl').html();    var str=templet(tpl,data);    $('#ab').html(str);    function templet(tpl, data) {        var code="";        var i;        var b=0;        var a=0;        for(i=0;i<tpl.length-1;i++){            var c=tpl[i];            var d=tpl[i+1];            if(a===0&&c==='{'&&d==='{'){                if(b===0){                    code+="var r='"+tpl.substring(b,i)+"';";                }else{                    code+="r+='"+tpl.substring(b,i)+"';";                }                b=i+2;                i++;                a=1;            }else if(a===1&&c==='}'&&d==='}'){                code+=tpl.substring(b,i);                b=i+2;                i++;                a=0;            }else if(a===0&&c==='\n'){                if(b===0){                    code+="var r='"+tpl.substring(b,i)+"\\n';";                }else{                    code+="r+='"+tpl.substring(b,i)+"\\n';";                }                b=i+1;            }        }        code+="r+='"+tpl.substring(b,i)+"';return r;";        var fn=new Function("data",code);        return fn(data);    }</script></body></html>

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