Why does the result of getting elements by ID in javascript output null or object HTMLParagraphElement? -PHP Chinese website Q&A-Why is null or object HTMLParagraphElement output when getting elements through ID in javascript? -PHP Chinese website Q&A
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Why does the result of getting elements by ID in javascript output null or object HTMLParagraphElement? -PHP Chinese website Q&A-Why is null or object HTMLParagraphElement output when getting elements through ID in javascript? -PHP Chinese website Q&A
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这里获取的元素是一个对象，输出是显示的是一个P元素对象。如想对元素进行操作，我们要通过它的属性或方法。如，我们要输出p元素的内容，那么就得用innerHTML属性。