html5Reader (file, item) {        const reader = new FileReader()        reader.onload = (e) => {          this.$set(item, 'src', e.target.result)        }        reader.readAsDataURL(file)      }

const item = {              name: list[i].name,              size: list[i].size,              file: list[i]            }                this.html5Reader(list[i], item)