修改price字段类型为varchar，同步修改页面组件

src/views/requiremanager/modules/HwRequirementModal.vue

@@ -50,7 +50,7 @@
             </a-form-item>
 
             <a-form-item label='参考单价' :labelCol='labelCol' :wrapperCol='wrapperCol'>
-              <a-input-number :min='0.01' v-decorator="[ 'price', validatorRules.price]" placeholder='请输入参考单价'
+              <a-input v-decorator="[ 'price', validatorRules.price]" placeholder='请输入参考单价'
                               style='width: 100%' />
             </a-form-item>