function removeHTMLTag(str) {

            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(/&nbsp;/ig, '');//去掉&nbsp;

            str = str.replace(/&lt;/ig, '');

            str = str.replace(/&gt;/ig, '');

            str = str.replace(/[div|\/div]/g, '');

            str = str.replace(/&lt;[ -~]*&gt;/ig, '');//去掉替换后的<>标签

            return str;

        }