(生活小废招)去除移动端(苹果手机)alert/confirm的

window.alert = function(name){

    var iframe = document.createElement("IFRAME");

    iframe.style.display="none";

    document.documentElement.appendChild(iframe);

    window.frames[0].window.alert(name);

    iframe.parentNode.removeChild(iframe)

}

window.confirm = function (message) {

      var iframe = document.createElement("IFRAME");

      iframe.style.display = "none";

      iframe.setAttribute("src", 'data:text/plain,');

      document.documentElement.appendChild(iframe);

      var alertFrame = window.frames[0];

      var result = alertFrame.window.confirm(message);

      iframe.parentNode.removeChild(iframe);

      return result;

}