function escape2Html(str) { var arrEntities = { ‘lt‘: ‘<‘, ‘gt‘: ‘>‘, ‘nbsp‘: ‘ ‘, ‘amp‘: ‘&‘, ‘quot‘: ‘"‘ }; return str.replace(/&(lt|gt|nbsp|amp|quot);/ig, function (all, t) { return arrEntities[t]; }); }
js 处理 html 标签转义 处理json中含有的ascii 编码
原文：http://www.cnblogs.com/bwlang/p/4450295.html