Implementierungsbeispielcode für das Hochladen mehrerer Bilder im WeChat-Miniprogramm

wx.chooseImage({
 success: function(res) {
  var tempFilePaths = res.tempFilePaths
  wx.uploadFile({
   url: 'http://example.weixin.qq.com/upload', //仅为示例，非真实的接口地址
   filePath: tempFilePaths[0],
   name: 'file',
   formData:{
    'user': 'test'
   },
   success: function(res){
    var data = res.data
    //do something
   }
  })
 }
})

wx.chooseImage({
 success: function(res) {
  var tempFilePaths = res.tempFilePaths;//这里是选好的图片的地址，是一个数组
  
 }
})

  //多张图片上传
  function uploadimg(data){
   var that=this,
     i=data.i?data.i:0,
     success=data.success?data.success:0,
     fail=data.fail?data.fail:0;
   wx.uploadFile({
      url: data.url, 
      filePath: data.path[i],
      name: 'fileData',
      formData:null,
      success: (resp) => {
        success++;
        console.log(resp)
        console.log(i);
        //这里可能有BUG，失败也会执行这里
      },
      fail: (res) => {
        fail++;
        console.log('fail:'+i+"fail:"+fail);
      },
      complete: () => {
        console.log(i);
        i++;
      if(i==data.path.length){  //当图片传完时，停止调用     
        console.log('执行完毕');
        console.log('成功：'+success+" 失败："+fail);
      }else{//若图片还没有传完，则继续调用函数
        console.log(i);
        data.i=i;
        data.success=success;
        data.fail=fail;
        that.uploadimg(data);
      }
        
      }
    });
  }