一、上传；

二、获取下载地址（URL）；

三、删除文件；

wxml:

<button type="default" bindtap="chooseFile">上传文件</button>
<button type="warn" bindtap="deleteFile">删除文件</button>
<button type="default" bindtap="getURL">获取URL</button>

一、上传：

  //选择文件
  chooseFile(){
    let that = this;
    wx.chooseMedia({
      count: 1,
      mediaType: ['image'],
      sourceType: ['album'],
      success(res) {
        console.log("打开相册成功！",res);
        that.upLoadFile(res.tempFiles[0].tempFilePath);
      },
      fail(err){
        console.log("打开相册失败！",err);
      },
      complete(){}
    })
  },

  //上传文件到云存储
  upLoadFile(tempFilePath){
    let that = this;
    wx.showLoading({
      title: '上传中....',
      mask: true,
      success: (res) => {},
      fail: (res) => {},
      complete: (res) => {
        wx.cloud.uploadFile({
          filePath : tempFilePath,//本地文件地址
          cloudPath : 'testDemo.jpg',//云存储地址
          success(res){
            console.log("上传文件到云存储成功！",res);
            that.setData({
                fileID : res.fileID
            })
            wx.showToast({
              title: '上传成功！',
              duration: 1200,
              icon: 'success',
              //image: 'image',
              mask: true,
              success: (res) => {},
              fail: (res) => {},
              complete: (res) => {},
            })
          },
          fail(err){
            console.log("上传文件到云存储失败！",err);
          },
          complete(){
            wx.hideLoading({
              noConflict: true,
              success: (res) => {},
              fail: (res) => {},
              complete: (res) => {},
            })
          }
        })
      },
    })
  },

上传成功：

 

二、获取下载地址（URL）：

  //获取云存储的下载地址
  getURL(){
      let that = this;
      let fileID = that.data.fileID;
      wx.showLoading({
        title: '获取URL中...',
        mask: true,
        success: (res) => {},
        fail: (res) => {},
        complete: (res) => {
            wx.cloud.getTempFileURL({
                fileList : [{
                    fileID : fileID
                }],
                success(res){
                    console.log("获取云存储的下载地址成功！",res);
                    that.setData({
                        currentCloudPath_URL : e.fileList[0].tempFileURL//取得当前上传文件的URL
                    })
                    wx.showToast({
                      title: '获取云存储的下载地址成功！',
                      duration: 1200,
                      icon: 'success',
                      //image: 'image',
                      mask: true,
                      success: (res) => {},
                      fail: (res) => {},
                      complete: (res) => {},
                    })
                },
                fail(err){
                    console.log("获取云存储的下载地址失败！",err);
                },
                complete(){
                    wx.hideLoading({
                      noConflict: true,
                      success: (res) => {},
                      fail: (res) => {},
                      complete: (res) => {},
                    })
                },
            })
        },
      })
  },

获取成功：

三、删除文件：

  //删除文件
  deleteFile(){
    let that = this;
    let fileID = that.data.fileID;
    wx.showLoading({
      title: '删除中...',
      mask: true,
      success: (res) => {},
      fail: (res) => {},
      complete: (res) => {
        wx.cloud.deleteFile({
          fileList : [fileID],//填入你的fileID(cloudID),可以填多个，如：['cloudID','cloudID','cloudID']
          success(res){
            console.log("删除成功！",res);
            wx.showToast({
              title: '删除成功！',
              duration: 1200,
              icon: 'success',
              //image: 'image',
              mask: true,
              success: (res) => {},
              fail: (res) => {},
              complete: (res) => {},
            })
          },
          fail(err){
            console.log("删除失败！",err);
          },
          complete(){
            wx.hideLoading({
              noConflict: true,
              success: (res) => {},
              fail: (res) => {},
              complete: (res) => {},
            })
          }
        })
      },
    })
  },