js代码中引入js文件

方式一:

document.write("<script src='xxx.js'></script>");

方式二:

var ele= document.createElement("script");
ele.setAttribute("type", "text/javascript");
ele.setAttribute("src", "xxx.js");
document.body.appendChild(ele);

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转载自blog.csdn.net/qq_42249896/article/details/90769809