话不多说代码附上
<!DOCTYPE html>
<html lang="en">
<head>
<Meta charset="UTF-8">
<Meta name="viewport"
content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0">
<Meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<img id="img" alt="">
<script>
const xhr = new XMLHttpRequest();
xhr.open('GET', 'https://pic2.zhimg.com/50/v2-2038cd0997d58ff893d433761b90c102_hd.webp', true);
xhr.responseType = "blob";
xhr.onreadystatechange = () => {
if (xhr.readyState === 4) {
if (xhr.status === 200) {
let res = xhr.response
console.log(res)
img.src = window.URL.createObjectURL(res);
}
}
}
xhr.send(null);
</script>
</body>
</html>
xhr.readyState的值
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