这里对象mychar后面为啥不用加innerHTML
<script type="text/javascript">
var mychar= document.getElementById("con");
mychar.innerHTML.style.color="red";
mychar.style.backgroundColor="#ccc";
mychar.style.width="300px";
</script>
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<script type="text/javascript">
var mychar= document.getElementById("con");
mychar.innerHTML.style.color="red";
mychar.style.backgroundColor="#ccc";
mychar.style.width="300px";
</script>
2019-02-20
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