vue前端实现图片下载，实现点击按钮弹出本地窗口，选择自定义保存路径_前端下载文件打开弹窗选择下载位置

作者：很楠不爱3 | 2024-02-27 04:40:13

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前端下载文件打开弹窗选择下载位置

vue前端实现前端下载,并实现点击按钮弹出本地窗口，选择自定义保存路径

一、实现下载

二、实现自定义保存路径

直接上代码，废话不多说，点关注，不迷路
一、下载代码

<!DOCTYPE html>

<html>
  <head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <title></title>
    <meta name="description" content="" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <link rel="stylesheet" href="" />
  </head>

  <body>
    <a onclick="fn1()" style="cursor: pointer">aaaaaaa</a>
    <script>
      var arr = [
        "https://img0.baidu.com/it/u=4162443464,2854908495&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=500",
      ];
      function downloadIamge(imgsrc, name) {
        let image = new Image();
        image.setAttribute("crossOrigin", "anonymous");
        image.onload = function () {
          let canvas = document.createElement("canvas");
          canvas.width = image.width;
          canvas.height = image.height;
          let context = canvas.getContext("2d");
          context.drawImage(image, 0, 0, image.width, image.height);
          let url = canvas.toDataURL("image/png");
          let a = document.createElement("a");
          let event = new MouseEvent("click");
          a.download = name || "photo";
          a.href = url;
          a.dispatchEvent(event);
        };
        image.src = imgsrc;
      }
      function WriteToFile(sText) {
        with (document) {
          ir = createElement("iframe");
          ir.id = "ifr";
          ir.location = "about:blank";
          ir.style.display = "none";
          body.appendChild(ir);
          with (getElementById("ifr").contentWindow.document) {
            open();
            write(sText);
            close();
            if (document.compatMode && document.all) {
              execCommand("SaveAs", false, ".txt");
            } else {
              location = "data:application/rtf," + encodeURIComponent(sText);
            }
          }
          setTimeout(function () {
            body.removeChild(ir);
          }, 1000);
        }
      }
      function fn1() {
        for (let i = 0; i < arr.length; i++) {
          downloadIamge(arr[i]);
        }
      }
    </script>
  </body>
</html>

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二、别找代码了，不用代码就可以实现
以下按照步骤一步一步来
按照红色箭头所指，用鼠标戳它
在这里插入图片描述

恭喜你，功能完成了

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