console 命令行工具 X clear

console

window.onload=function(){
  console.log("加载打印");
}

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <title>Document</title>
</head>
<body>
  <div>helloworld</div>
  <p class="info">我的第一个项目</p>
</body>
</html>

.info{
  color:red;
}