去除html字符串里面的标签

function removeHTMLTag(str) {
    str = str.replace(/<script[^>]*?>[\s\S]*?<\/script>/ig, ''); //去掉<script>;
    str = str.replace(/<style[^>]*?>[\s\S]*?<\/style>/ig, ''); //去掉<style>;
    str = str.replace(/<\/?[^>]*>/g, ''); //去除HTML tag
    str = str.replace(/[ | ]*\n/g, '\n'); //去除行尾空白
    str = str.replace(/\n[\s| | ]*\r/g, '\n'); //去除多余空行
    str = str.replace(/(^\s*)|(\s*$)/g, ""); //去掉空格
    str = str.replace(/&nbsp;/ig, ''); //去掉&nbsp;
    return str;
}