方法1：
var script = document.createElement("script")
script.type = "text/javascript"
script.src = "https://www.cnblogs.com//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"
document.body.appendChild(script)
方法2：
var script = document.createElement("script")
script.type = "text/javascript"
script.src = "https://www.cnblogs.com//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"
script.onload = function(){console.log("jQuery is ready!")}
document.body.appendChild(script)
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標籤：jQuery
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