自动计算属性增加控制规则函数

package.json

 {
     "name": "panda-xform",
-    "version": "2.0.1",
-    "description": "2.0.1: 增加业务表单与自动计算的控制规则",
+    "version": "2.0.2",
+    "description": "2.0.2: 自动计算属性增加控制规则函数",
     "keywords": [
         "panda-xform"
     ],

src/core/widgets/settings/groupSource/CalculateRule/index.js

@@ -6,6 +6,17 @@ import { isObject } from '../../../../../utils'
 
 const { TextArea } = Input
 
+const fnList = [
+  { label: '最大值', value: '$math.max()' },
+  { label: '最小值', value: '$math.min()' },
+  { label: '求和', value: '$math.sum()' },
+  { label: '平均值', value: '$math.avg()' },
+  { label: '时间差(小时)', value: '$math.datediffhour()' },
+  { label: '时间差(天)', value: '$math.datediffday()' },
+  { label: '向下取整', value: '$math.ceiling()' },
+  { label: '向上取整', value: '$math.floor()' },
+]
+
 const ControlRules = (props) => {
 
   const { value, onChange, addons } = props
@@ -82,6 +93,20 @@ const ControlRules = (props) => {
     ruleText.current.focus()
   }
 
+  const insertFn = value => {
+    insert(value)
+  }
+
+  const fnListRender = (
+    <Menu>
+      {fnList.map(item => (
+        <Menu.Item key={item.value} onClick={() => insertFn(item.value)}>
+          {item.label}
+        </Menu.Item>
+      ))}
+    </Menu>
+  )
+
   return (
     <div>
       <Input
@@ -111,6 +136,9 @@ const ControlRules = (props) => {
           </div>
           <div className={styles.rightContent}>
             <div className={styles.textAreaBox}>
+              <Dropdown overlay={fnListRender} placement="bottom" arrow>
+                <div className={styles.insertFn}>插入函数</div>
+              </Dropdown>
               <TextArea
                 id="calculateRule"
                 autoSize={{ minRows: 19, maxRows: 19 }}