

.value是一个介于innerHTML和innerText的效果
既不会显示代码,还可以显示文本
<!DOCTYPE html>
<html>
<body>
<h1>My First Web Page</h1>
<pid="demo">My First Paragraph.</p>
<script>
document.getElementById("demo").innerHTML="<h1>My First JavaScript</h1>";
</script>
</body>
</html>
输出结果:
MyFirstWebPage
MyFirstJavascript
innerText
<!DOCTYPE html>
<html>
<body>
<h1>My First Web Page</h1>
<pid="demo">My First Paragraph.</p>
<script>
document.getElementById("demo").innerText="<h1>My First JavaScript</h1>";
</script>
</body>
</html>
输出结果:
My First Web Page
<h1>My First Javascript</h1>
value
<!DOCTYPE html>
<html>
<body>
<h1>My First Web Page</h1>
<pid="demo">My First Paragraph.</p>
<script>
document.getElementById("demo").value="<h1>My First JavaScript</h1>";
</script>
</body>
</html>
输出结果:
My First Web Page
My First Paragraph.