云函数用于表单`form`调用按钮,经常用于数据审核,或者更改数据状态等操作,使表单可以通过按钮直接调用api接口

在 /forms/demo/pet.form.yao中有云函数

      {
        "title": "测试云函数",
        "icon": "icon-cloud",
        "action": [
          { "name": "Submit", "type": "Form.submit", "payload": {} },
          {
            "name": "Foo",
            "type": "Service.foo",
            "payload": { "method": "Bar", "args": ["[[$Submit]]"] }
          }
        ]
      },

其中"name": "Foo",是云函数的名称,"type": "Service.foo",为:调用/services/foo.js文件,"method": "Bar"调用foo.js文件的Bar函数,"[[$Submit]]"为上一步 Submit 返回的参数,可以用于下一步的传参