element-ui遮罩层el-dialog的使用

<el-button type="text" @click="dialogVisible = true">点击打开 Dialog</el-button>

    <el-dialog
      title="提示"
      :visible.sync="dialogVisible"
      width="80%"
      :before-close="handleClose"
      :close-on-click-modal="false">
      <span>这是一段信息</span>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="dialogVisible = false">确 定</el-button>
      </span>
    </el-dialog>

dialogVisible:false,

closeShadow(){
      this.dialogVisible=false;
    },
    handleClose(done) {
      this.$confirm(‘确认关闭？‘)
        .then(_ => {
          done();
        })
        .catch(_ => {});
    }