题卡大题名称最多30字符

card/elements/composition/EditComposition.vue

@@ -22,6 +22,7 @@
           v-model="modalForm.topicName"
           type="textarea"
           :autosize="{ minRows: 2, maxRows: 5 }"
+          :maxlength="30"
           resize="none"
           placeholder="请输入题目名称"
           clearable

card/elements/explain/EditExplain.vue

@@ -22,6 +22,7 @@
           v-model="modalForm.topicName"
           type="textarea"
           :autosize="{ minRows: 2, maxRows: 5 }"
+          :maxlength="30"
           resize="none"
           placeholder="请输入题目名称"
           clearable

card/elements/fill-line/EditFillLine.vue

@@ -22,6 +22,7 @@
           v-model="modalForm.topicName"
           type="textarea"
           :autosize="{ minRows: 2, maxRows: 5 }"
+          :maxlength="30"
           resize="none"
           placeholder="请输入题目名称"
           clearable

card/elements/fill-question/EditFillQuestion.vue

@@ -29,6 +29,7 @@
           v-model="modalForm.topicName"
           type="textarea"
           :autosize="{ minRows: 2, maxRows: 5 }"
+          :maxlength="30"
           resize="none"
           placeholder="请输入题目名称"
           clearable