作者:幸福的xinwangnanfei_736 | 来源:互联网 | 2021-10-27 17:21
废话不多说了,直接给大家贴代码了,具体代码如下所示:
window.alert = alert;
function alert(data) {
var MainDiv = document.createElement("div"),
p = document.createElement("p"),
AllPage = document.createElement("div"),
btn = document.createElement("div"),
textNode = document.createTextNode(data ? data : ""),
btnText = document.createTextNode("确定");
// 控制样式
css(AllPage, {
"position": "fixed",
" _position": "absolute",
" width": "100%",
"height": "100%",
"left": "0",
"top": "0",
"background": "rgba(0, 0, 0,0.5)",
"-moz-opacity": "0.5",
"filter": "alpha(opacity=50)",
"z-index": "97",
});
css(MainDiv, {
"position": "fixed",
"left": "0",
"right": "0",
"top": "30%",
"width": "14rem",
"height": "5rem",
"padding-top":"0.5rem",
"margin": "0 auto",
"background-color": "white",
"font-size": "0.75rem",
"text-align": "center",
"position": "relative",
"border-radius": "5px 5px 5px 5px",
});
css(btn, {
"background": "#de241b",
"color": "white",
"width": "6rem",
"margin-left": "4rem",
"margin-bottom":"0.25rem",
"height": "1.5rem",
"border-radius": "5px 5px 5px 5px",
"position": "absolute",
"padding-top":"0.5rem",
"bottom":"0",
})
// 内部结构套入
p.appendChild(textNode);
btn.appendChild(btnText);
MainDiv.appendChild(p);
MainDiv.appendChild(btn);
AllPage.appendChild(MainDiv);
// 整体显示到页面内
document.getElementsByTagName("body")[0].appendChild(AllPage);
//禁止滚动
$("body").on("touchmove", function (event) {
event.preventDefault;
}, false)
// 确定绑定点击事件删除标签
btn.Onclick= function () {
AllPage.parentNode.removeChild(AllPage);
//启用滚动
$("body").off("touchmove");
}
}
function css(targetObj, cssObj) {
var str = targetObj.getAttribute("style") ? targetObj.getAttribute("style") : "";
for (var i in cssObj) {
str += i + ":" + cssObj[i] + ";";
}
targetObj.style.cssText = str;
}
以上所述是小编给大家介绍的使用Javascript实现alert的实例代码,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对网站的支持!