function my_template(id,data){
var contentStr =document.querySelector(‘#‘+id).innerHTML;
var reg = /{{(\w+)}}/;
var result = reg.exec(contentStr);
while (result) {
contentStr = contentStr.replace(result[0],data[result[1]]);result = reg.exec(contentStr);
}
return contentStr;
}
原文：https://www.cnblogs.com/huangyuanning/p/11961219.html