这段代码有什么问题为什么总是运行不成功呢？求解
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<title></title>
</head>
<body>
<p id="imooc1"></p>
<p id="imooc2"></p>
<script type="text/javascript">
var mychar=document.getElementById("imooc1");
mychar.innerHTML = "您好！";
document.write(mychar.innerHTML);
mychar.style.color = "red";
}
</script>
</body>
</html>
