微信小程序 上传图片

效果图  如上，js  如下，在页面循环图片就可以

  /**
   * 选择图片
   */
  uploadImgAdd: function(e) {
    var imgs = this.data.imgs;
    wx.chooseImage({
      sizeType: [‘original‘, ‘compressed‘],
      sourceType: [‘album‘, ‘camera‘],
      success: (res) => {
        for (let j in res.tempFilePaths){
          if (res.tempFilePaths[j].substring(res.tempFilePaths[j].length - 3)  == ‘gif‘){
            wx.showToast({
              title: ‘暂不能上传动图哦，换张图片试试吧~‘,
              icon: ‘none‘,
              duration: 2000,
              mask: true,
            })
            res.tempFilePaths.splice(j, 1)
          }
        }
        let tempFilePaths = this.data.tempFilePaths.concat(res.tempFilePaths);
        this.setData({
          tempFilePaths: tempFilePaths
        })
        let uploadimagsSrc = []
        for (var i = 0; i < tempFilePaths.length; i++) {   //转换为七牛地址
          if (imgs.length >= 9) {
            return false;
          } else {
            wx.uploadFile({
              url: app.data.urls + ‘images/Picture‘,
              filePath: tempFilePaths[i],
              header: {
                ‘content-type‘: ‘multipart/form-data‘
              },
              name: ‘file‘,
              success: res => {
                let data = res.data;
                console.log(res)
                uploadimagsSrc = [...uploadimagsSrc, data];
                this.setData({
                  uploadimagsSrc: uploadimagsSrc
                })
              },
              fail: (res) => {
                console.log(res)
                if (res.errMsg == "uploadFile:fail Broken pipe"){

                }
              }
            })
          }
        }
      },fail:(res)=>{
        console.log(res)
      }
    })
  },

  /**
   * 删除图片
   */
  uploadImgClose: function(e) {
    var imgs = this.data.tempFilePaths;
    var index = e.currentTarget.dataset.index;
    imgs.splice(index, 1);
    this.setData({
      tempFilePaths: imgs,
      uploadimagsSrc: imgs
    });
  },

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原文地址：https://www.cnblogs.com/zhenga/p/10361182.html