浙江师范大学-网络继续教育学院-视频连播

浙江师范大学-网络继续教育学院-视频连播！

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Review: Good - script works

bingtuan
§
Posted: 15/12/2022
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终于搞定了，原来是document.querySelector(".px-course-list > div:nth-child(1)还没有载入的问题，添加setInterval来循环判断是否载入成功即可正常运行


let wait = setInterval(()=>{
console.log("等待载入")
if(document.querySelector(".px-course-list > div:nth-child(1)")){
console.log("载入成功")
clearInterval(wait)
let course = document.querySelector(".px-course-list > div:nth-child(1)");
//let over = course.getElementsByClassName("progress-bar")[0];
//获取课程标签
kecheng(course);
}
},1000)

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