table属性格式，列数优化

com.actionsoft.apps.coe.pal/src/views/method/MethodAttribute.vue

@@ -343,6 +343,12 @@
                           <awsui-form-item label="表格列名2">
                             <awsui-input v-model="attrForm.tableRef.secondColumn" placeholder="请输入列名2"></awsui-input>
                           </awsui-form-item>
+                          <awsui-form-item label="表格列名3">
+                            <awsui-input v-model="attrForm.tableRef.threeColumn" placeholder="请输入列名3"></awsui-input>
+                          </awsui-form-item>
+                          <awsui-form-item label="表格列名4">
+                            <awsui-input v-model="attrForm.tableRef.fourColumn" placeholder="请输入列名4"></awsui-input>
+                          </awsui-form-item>
                         </template>
                         <awsui-form-item label="属性描述" prop="desc">
                           <awsui-input v-model="attrForm.desc" placeholder="请输入属性描述"></awsui-input>
@@ -517,6 +523,8 @@
                     tableRef: {
                       firstColumn: '',
                       secondColumn: '',
+                      threeColumn:'',
+                      fourColumn:'',
                     },
                     value: '',
                     readonly: false,
@@ -806,7 +814,9 @@
                     },
                     tableRef: {
                       firstColumn: '',
-                      secondColumn: ''
+                      secondColumn: '',
+                      threeColumn:'',
+                      fourColumn:''
                     },
                     value: '',
                     readonly: false,
@@ -889,6 +899,8 @@
                 if (form.type == 'table') {
                   form.tableRef.firstColumn = row.tableRef.firstColumn
                   form.tableRef.secondColumn = row.tableRef.secondColumn
+                  form.tableRef.threeColumn = row.tableRef.threeColumn
+                  form.tableRef.fourColumn = row.tableRef.fourColumn
                 }
                 // 类型为pal bpm 时 只读行为不可选
                 let arr = ['relation','awsorg'];
@@ -1275,6 +1287,8 @@
                 this.attrForm.awsorgRef.multiple = 'false';
                 this.attrForm.tableRef.firstColumn = ''
                 this.attrForm.tableRef.secondColumn = ''
+                this.attrForm.tableRef.threeColumn = ''
+                this.attrForm.tableRef.fourColumn = ''
                 this.attrForm.value = '';
             },
             initDrawerBodyHeight() {