blog/index.html at master · hu949277923/blog · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
  <script>
    var p1 = new Promise((resolve, reject) => {
      setTimeout(() => {
        resolve(1)
      }, 1000)
    })
    var p2 = new Promise((resolve, reject) => {
      setTimeout(() => {
        resolve(2)
      }, 1000)
    })
    var p3 = new Promise((resolve, reject) => {
      setTimeout(() => {
        resolve(3)
      }, 1000)
    })
    Promise.all([p1,p2,p3]).then((res) => {
      console.log(22)
      console.log(res)
    }).then((err) => {
      console.log(11)
      console.log(err)
    })
  </script>
</body>
</html>