点击页面按钮复制内容

if (document.selection) {//ie
    var range1 = document.body.createTextRange();
    range1.moveToElementText($(this).parent().find(".weixinHref")[0]);
    range1.select();
    document.execCommand("Copy");
} else if (window.getSelection) {
    var range = document.createRange();
    range.selectNode($(this).parent().find(".weixinHref")[0]);
    window.getSelection().addRange(range);
    document.execCommand("Copy");
}