var jqcdnurl = 'https://cdn.bootcss.com/jquery/3.2.1/jquery.js';
//控制台输出
function log() {
for (var index in arguments) {
console.log(arguments[index]);
}
}
//js加载 fun
function loadjs() {
arguments[0]();
for (var index in arguments) {
if (index != 0) {
document.write("<scr" + "ipt src=\"" + arguments[index] + "\"></sc" + "ript>");
log("java script :" + arguments[index] + " -> please waiting,loading...↓")
}
}
}
//异常处理函数 fun
function catchErro() {
try {
if (arguments.length > 0) {
arguments[0]();
}
} catch (err) {
if (arguments.length > 1) {
arguments[1](err);
}
} finally {
if (arguments.length > 2) {
arguments[2]();
}
}
}
//是否具有jq 环境 fun
function isHasJq() {
return typeof (jQuery) == "undefined" ? false : true;
}
//动态加载js fun
function loadScript(url, callback) {
var script = document.createElement("script");
script.type = "text/javascript";
if (typeof (callback) != "undefined") {
if (script.readyState) {
script.onreadystatechange = function () {
if (script.readyState == "loaded" || script.readyState == "complete") {
script.onreadystatechange = null;
callback();
}
};
} else {
script.onload = function () {
callback();
};
}
};
script.src = url;
document.body.appendChild(script);
}
//是否存在此src js fun
function isHasjsBysrc(url) {
var ishave = false;
var headscripts = document.getElementsByTagName('script');
for (var index in headscripts) {
if (headscripts[index].src == url) {
ishave = true
}
log("引入脚本:" + headscripts[index].src);
}
log("JQ 脚本状态:" + ishave);
return ishave;
}
//加载jqcdn #废除 fun
function appendJQCDN() {
if (!isHasjsBysrc("https://cdn.bootcss.com/jquery/1.10.2/jquery.min.js")) {
var head = document.head || document.getElementsByTagName('head')[0];
var script = document.createElement('script');
var style = document.createElement('style');
script.setAttribute("src", "https://cdn.bootcss.com/jquery/1.10.2/jquery.min.js");
style.innerHTML = '';
head.appendChild(script);
head.appendChild(style);
log("JQ CDN 引入成功！ ");
}
}
//动态加载JQ并执行 fun
function dynamicAddJQExcute(excuteFUN) {
loadScript(jqcdnurl, excuteFUN);
log("JQ ALL Ready!");
}
//加载js
loadjs(function () {
log("cs_base-js load ok!", "loading done");
}, "js/csopp.js", "js/cstip.js");
//JQ执行函数
function ExcuteCs(fun) {
if (isHasJq()) {
$(document).ready(function () {
fun();
});
} else {
dynamicAddJQExcute(function () {
$(document).ready(function () {
fun();
});
});
}
}
document.onload = catchErro(
function () {
if (isHasJq()) {
log("JQ ALL Ready!");
} else throw ex;
},
function (ex) {
log("没有引入 JQ 环境,请引入JQ 环境", "动态引入.... (未在网络状态则无法动态引用)" ,"建议手动引入,否则造成未知错误，对此不负任何责任");
}
);
ExcuteCs(function(){
$("body").html("TEST");
});