var str = '中国人民<span id="nrwzkeynr21"><span>去除<div class="open_css">打开</span>中国人民2<span id="nrwzkeynr22“><span>去除<div class="open_css">打开</span>'; var reg = /<span id="nrwzkeynr.*?class="open_css">打开<\/span>/ig alert(str.replace(reg, ''));
var str = "中国人民<span id=\"nrwzkeynr21\"><span>去除<div class=\"open_css\">打开</span>中国人民2<span id=\"nrwzkeynr22\"><span>去除<div class=\"open_css\">打开</span>"; var a= str.indexOf("<span"); var b= str.indexOf("<\/span>"); var c = str.indexOf("<span", b + 1); str = str.substr(0, a) + str.substr(b + 7, c-b-7); alert(str);
var str = '中国人民<span id="nrwzkeynr21"><span>去除<div class="open_css">打开</span>中国人民2<span id="nrwzkeynr22“><span>去除<div class="open_css">打开</span>';
var reg = /<span id="nrwzkeynr.*?class="open_css">打开<\/span>/ig
alert(str.replace(reg, ''));
var a= str.indexOf("<span");
var b= str.indexOf("<\/span>");
var c = str.indexOf("<span", b + 1);
str = str.substr(0, a) + str.substr(b + 7, c-b-7);
alert(str);