84669 person learning
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new document
表格在页面中没有加载,控制台报错如下
Uncaught TypeError: Cannot read property 'appendChild' of null at 11.html:31
错误指向这一行 document.body.appendChild(table);
认证0级讲师
执行js的时候body还没加载,把script放在body内部或者用window.onload把js包起来可以解决问题
执行js的时候body还没加载,把script放在body内部或者用window.onload把js包起来可以解决问题