el-upload点击时间在哪

el-upload 组件的点击时间可以在以下两种情况下触发：

1. 点击上传按钮触发：这个点击事件可以在 el-upload 组件的 `before-upload` 属性中进行配置，例如：

<el-upload
  class="upload-demo"
  action="/upload"
  :before-upload="handleBeforeUpload"
>
  <el-button slot="trigger" type="primary">选取文件</el-button>
  <el-button type="success" class="upload-demo-start" :disabled="!uploadDisabled">开始上传</el-button>
  <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
</el-upload>

methods: {
  handleBeforeUpload(file) {
    console.log('点击上传按钮触发', file);
  }
}

2. 选择文件后触发：这个点击事件可以在 el-upload 组件的 `on-change` 属性中进行配置，例如：

<el-upload
  class="upload-demo"
  action="/upload"
  :on-change="handleChange"
>
  <el-button slot="trigger" type="primary">选取文件</el-button>
  <el-button type="success" class="upload-demo-start" :disabled="!uploadDisabled">开始上传</el-button>
  <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
</el-upload>

methods: {
  handleChange(file, fileList) {
    console.log('选择文件后触发', file, fileList);
  }
}