antd 上传图片获取宽高

    // 尺寸

    getFileWidthAndHeight (file) {

      const _URL = window.URL || window.webkitURL

      const img = new Image()

      img.onload = function () {

        console.log('width , height ', img.width, img.height)

      }

      img.src = _URL.createObjectURL(file)

    }

 
  
        handleBeforeUpload (file, fileList) {  // 上传回调 
   
  
          return new Promise(async (resolve, reject) => { 
   
  
            this.getFileWidthAndHeight(file)   //看这里 
   
  
            console.log('handleBeforeUpload...', this.params, file) 
   
  
 
  
            const imageReg = /\.(gif|jpg|jpeg|png|webp|GIF|JPG|JPEG|PNG|WEBP)$/ 
   
  
            if (imageReg.test(file.name)) { 
   
  
              return this.GetUploadSinature(this.params).then(() => resolve()) 
   
  
            } 
   
  
            const errText = '请选择图片上传' 
   
  
            this.$message.error(errText) 
   
  
            // eslint-disable-next-line prefer-promise-reject-errors 
   
  
            reject() 
   
  
          }) 
   
  
        }, 
   
 

// 待补充，实时获取的file格式