1. <!DOCTYPE html>
    2. <html lang="en">
    4. <head>
    5.   <meta charset="UTF-8">
    6.   <meta name="viewport" content="width=device-width, initial-scale=1.0">
    7.   <title>Document</title>
    8. </head>
    10. <body>
    11.   <script>
    12.     //url转blob
    13.     function urlToBlob() {
    14.       let file_url =
    15.         'http://obdataplatform-test.oss-cn-shenzhen.aliyuncs.com/2020_07_10/391f56b9-f4bc-408b-868b-31ea0f8b1b47.hex'
    16.       let xhr = new XMLHttpRequest();
    17.       xhr.open("get", file_url, true);
    18.       xhr.responseType = "blob";
    19.       xhr.onload = function () {
    20.         if (this.status == 200) {
    21.           // if (callback) {
    22.           // callback();
    23.           console.log(this.response)
    24.           const reader = new FileReader()
    25.           reader.onload = function () {
    26.             console.log('reader.result', reader.result)
    27.           }
    28.           reader.readAsText(this.response);
    29.         }
    30.       };
    31.       xhr.send();
    32.     }
    33.     urlToBlob()
    34.   </script>
    35. </body>
    37. </html>