长度做限制

src/views/education/edit-subject.vue

@@ -25,6 +25,7 @@
             <el-input
               size="small"
               v-model="formData.name"
+              maxlength="20"
               placeholder="请输入学科名称"
               style="width:70%;"
             ></el-input>
@@ -47,6 +48,7 @@
                 <el-input
                   size="small"
                   v-model="item.name"
+                  maxlength="20"
                   placeholder="请输入二级分类名称"
                   style="width:70%;"
                 ></el-input>
@@ -61,6 +63,7 @@
                 <el-input
                   size="small"
                   v-model="item.code"
+                  maxlength="8"
                   placeholder="请输入二级分类代码"
                   style="width:70%;"
                 ></el-input>