以下为实例代码，jquery请自行下载。
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>使用JQuery实现网页加载时弹出对话框并根据条件跳转</title>
<script src="js/jquery-3.4.1.min.js"></script>
<style>
</style>
</head>
<body>
<script>
$(document).ready(function(){
$.MsgBox.Confirm("温馨提示", "页面即将跳转，请点击确定前往！", test);//执行函数
});
function test() {
window.location.href="https://www.jianshu.com/u/0e3fd9fe73d2"
}
(function() {
$.MsgBox = {
Confirm: function(title, msg, callback) {
GenerateHtml("confirm", title, msg);
btnOk(callback);
btnNo();
}
}
//生成Html
var GenerateHtml = function(type, title, msg) {
var _html = "";
_html += '<div id="mb_box"></div><div id="mb_con"><span id="mb_tit">' + title + '</span>';
_html += '<a id="mb_ico">x</a><div id="mb_msg">' + msg + '</div><div id="mb_btnbox">';
if (type == "alert") {
_html += '<input id="mb_btn_ok" type="button" value="确定" />';
}
if (type == "confirm") {
_html += '<input id="mb_btn_ok" type="button" value="确定" />';
_html += '<input id="mb_btn_no" type="button" value="取消" />';
}
_html += '</div></div>';
//必须先将_html添加到body，再设置Css样式
$("body").append(_html);
//生成Css
GenerateCss();
}
//生成Css
var GenerateCss = function() {
$("#mb_box").css({
width: '100%',
height: '100%',
zIndex: '99999',
position: 'fixed',
filter: 'Alpha(opacity=60)',
backgroundColor: 'black',
top: '0',
left: '0',
opacity: '0.6'
});
$("#mb_con").css({
zIndex: '999999',
width: '400px',
position: 'fixed',
backgroundColor: 'White',
borderRadius: '15px'
});
$("#mb_tit").css({
display: 'block',
fontSize: '14px',
color: '#444',
padding: '10px 15px',
backgroundColor: '#DDD',
borderRadius: '15px 15px 0 0',
borderBottom: '3px solid #009BFE',
fontWeight: 'bold'
});
$("#mb_msg").css({
padding: '20px',
lineHeight: '20px',
borderBottom: '1px dashed #DDD',
fontSize: '13px'
});
$("#mb_ico").css({
display: 'block',
position: 'absolute',
right: '10px',
top: '9px',
border: '1px solid Gray',
width: '18px',
height: '18px',
textAlign: 'center',
lineHeight: '16px',
cursor: 'pointer',
borderRadius: '12px',
fontFamily: '微软雅黑'
});
$("#mb_btnbox").css({
margin: '15px 0 10px 0',
textAlign: 'center'
});
$("#mb_btn_ok,#mb_btn_no").css({
width: '85px',
height: '30px',
color: 'white',
border: 'none'
});
$("#mb_btn_ok").css({
backgroundColor: '#168bbb'
});
$("#mb_btn_no").css({
backgroundColor: 'gray',
marginLeft: '20px'
});
//右上角关闭按钮hover样式
$("#mb_ico").hover(function() {
$(this).css({
backgroundColor: 'Red',
color: 'White'
});
}, function() {
$(this).css({
backgroundColor: '#DDD',
color: 'black'
});
});
var _widht = document.documentElement.clientWidth; //屏幕宽
var _height = document.documentElement.clientHeight; //屏幕高
var boxWidth = $("#mb_con").width();
var boxHeight = $("#mb_con").height();
//让提示框居中
$("#mb_con").css({
top: (_height - boxHeight) / 2 + "px",
left: (_widht - boxWidth) / 2 + "px"
});
}
//确定按钮事件
var btnOk = function(callback) {
$("#mb_btn_ok").click(function() {
$("#mb_box,#mb_con").remove();
if (typeof(callback) == 'function') {
callback();
}
});
}
//取消按钮事件
var btnNo = function() {
$("#mb_btn_no,#mb_ico").click(function() {
$("#mb_box,#mb_con").remove();
});
}
})();
</script>
</body>
</html>
网友评论