在＜el-upload＞ 组件中，调用默认的事件方法传递添加参数

        在使用<el-upload>组件时我们在事件方法传递参数会导致直接触发这个方法，所以我们需要进行修改

        例： :on-change="(file) => changeFile(file,item)"

<el-upload :limit="item.doctCamera"
       v-model:file-list="FileList"
       action=""
       :auto-upload="true"
       :http-request="manualUpload"
       list-type="picture-card"
       :on-preview="handlePictureCardPreview"
       :on-remove="handleRemove"
       :on-error="errorFile"
       :on-change="(file) => changeFile(file,item)"
       :on-success="successFile"
       :before-upload="beforeUpload"
        >
      <el-icon>
           <Plus/>
      </el-icon>
</el-upload>
<el-dialog v-model="dialogVisible" title="预览">
      <img style="width: 100%" w-full :src="dialogImageUrl" alt="Preview Image"/>
</el-dialog>