表单空值校验

src/components/cdssManage/knowledge/AddKnowledge.vue

@@ -145,7 +145,7 @@ export default {
     let checkFrequency = (rule, value, callback) => {
       let pycode = this.$refs.pycode.value;
       console.log(pycode);
-      if (!reg.test(pycode.trim())) {
+      if (!reg.test(pycode && pycode.trim())) {
         callback('术语拼音仅支持字母、数字和标点符号');
       } else {
         callback();