diff --git a/src/oj/components/submission-result-tag.vue b/src/oj/components/SubmissionResultTag.vue
similarity index 100%
rename from src/oj/components/submission-result-tag.vue
rename to src/oj/components/SubmissionResultTag.vue
diff --git a/src/oj/index.vue b/src/oj/index.vue
index c7eab0c..2a0b556 100644
--- a/src/oj/index.vue
+++ b/src/oj/index.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">
-import Login from "../shared/user/login.vue"
-import Signup from "../shared/user/signup.vue"
-import Header from "../shared/layout/header.vue"
+import Login from "../shared/Login/index.vue"
+import Signup from "../shared/Signup/index.vue"
+import Header from "../shared/Header/index.vue"
 </script>
 
 <template>
diff --git a/src/oj/problem/components/problem-content.vue b/src/oj/problem/components/ProblemContent.vue
similarity index 100%
rename from src/oj/problem/components/problem-content.vue
rename to src/oj/problem/components/ProblemContent.vue
diff --git a/src/oj/problem/components/problem-info.vue b/src/oj/problem/components/ProblemInfo.vue
similarity index 100%
rename from src/oj/problem/components/problem-info.vue
rename to src/oj/problem/components/ProblemInfo.vue
diff --git a/src/oj/problem/components/submit-panel.vue b/src/oj/problem/components/SubmitPanel.vue
similarity index 94%
rename from src/oj/problem/components/submit-panel.vue
rename to src/oj/problem/components/SubmitPanel.vue
index ca807e1..81c71cf 100644
--- a/src/oj/problem/components/submit-panel.vue
+++ b/src/oj/problem/components/SubmitPanel.vue
@@ -13,14 +13,14 @@ import {
 import { Problem, Submission, SubmitCodePayload } from "../../../utils/types"
 import { getSubmission, submitCode } from "../../api"
 
-import SubmissionResultTag from "../../components/submission-result-tag.vue"
+import SubmissionResultTag from "../../components/SubmissionResultTag.vue"
 import { useCodeStore } from "../../stores/code"
 
 const problem = inject<Ref<Problem>>("problem")
 const { code } = useCodeStore()
 
 const route = useRoute()
-const contestID = <string>route.params.contestID || ""
+const contestID = <string>route.params.contestID ?? ""
 
 const submissionId = ref("")
 const submission = ref<Submission | null>(null)
diff --git a/src/oj/problem/components/testcase-panel.vue b/src/oj/problem/components/TestcasePanel.vue
similarity index 100%
rename from src/oj/problem/components/testcase-panel.vue
rename to src/oj/problem/components/TestcasePanel.vue
diff --git a/src/oj/problem/components/editor.vue b/src/oj/problem/components/editor.vue
index 0468e21..d5fc2fd 100644
--- a/src/oj/problem/components/editor.vue
+++ b/src/oj/problem/components/editor.vue
@@ -6,8 +6,8 @@ import { submissionExists } from "../../api"
 import { TabsPaneContext } from "element-plus"
 
 import Monaco from "../../../shared/monaco/index.vue"
-import SubmitPanel from "../components/submit-panel.vue"
-import TestcasePanel from "../components/testcase-panel.vue"
+import SubmitPanel from "./SubmitPanel.vue"
+import TestcasePanel from "./TestcasePanel.vue"
 
 interface Props {
   problem: Problem
diff --git a/src/oj/problem/detail.vue b/src/oj/problem/detail.vue
index 826751a..d8dc42e 100644
--- a/src/oj/problem/detail.vue
+++ b/src/oj/problem/detail.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">
-import Editor from "./components/editor.vue"
-import ProblemContent from "./components/problem-content.vue"
-import ProblemInfo from "./components/problem-info.vue"
+import Editor from "./components/Editor.vue"
+import ProblemContent from "./components/ProblemContent.vue"
+import ProblemInfo from "./components/ProblemInfo.vue"
 import { getProblem } from "../api"
 import { isDesktop, isMobile } from "../../utils/breakpoints"
 
diff --git a/src/oj/problem/list.vue b/src/oj/problem/list.vue
index cfcf349..ea99f66 100644
--- a/src/oj/problem/list.vue
+++ b/src/oj/problem/list.vue
@@ -20,19 +20,19 @@ const total = ref(0)
 const { data: tags } = getProblemTagList()
 
 const query = reactive({
-  keyword: (route.query.keyword as string) || "",
-  difficulty: route.query.difficulty || "",
-  tag: route.query.tag || "",
-  page: parseInt(<string>route.query.page) || 1,
-  limit: parseInt(<string>route.query.limit) || 10,
+  keyword: route.query.keyword ?? "",
+  difficulty: route.query.difficulty ?? "",
+  tag: route.query.tag ?? "",
+  page: parseInt(<string>route.query.page) ?? 1,
+  limit: parseInt(<string>route.query.limit) ?? 10,
 })
 
 async function listProblems() {
-  query.keyword = (route.query.keyword as string) || ""
-  query.difficulty = route.query.difficulty || ""
-  query.tag = route.query.tag || ""
-  query.page = parseInt(<string>route.query.page) || 1
-  query.limit = parseInt(<string>route.query.limit) || 10
+  query.keyword = route.query.keyword ?? ""
+  query.difficulty = route.query.difficulty ?? ""
+  query.tag = route.query.tag ?? ""
+  query.page = parseInt(<string>route.query.page) ?? 1
+  query.limit = parseInt(<string>route.query.limit) ?? 10
 
   if (query.page < 1) query.page = 1
   const offset = (query.page - 1) * query.limit
diff --git a/src/shared/layout/header.vue b/src/shared/Header/index.vue
similarity index 100%
rename from src/shared/layout/header.vue
rename to src/shared/Header/index.vue
diff --git a/src/shared/user/login.vue b/src/shared/Login/index.vue
similarity index 88%
rename from src/shared/user/login.vue
rename to src/shared/Login/index.vue
index 3d9d5da..2a181b1 100644
--- a/src/shared/user/login.vue
+++ b/src/shared/Login/index.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">
 import { FormInstance } from "element-plus"
 import { useSignupStore } from "../../oj/stores/signup"
-import { login } from "../../shared/api"
+import { login } from "../api"
 import { useLoginStore } from "../store/login"
 import { useUserStore } from "../store/user"
 
@@ -56,15 +56,16 @@ function goSignup() {
       label-position="right"
       label-width="70px"
     >
-      <el-form-item label="用户名" required prop="username" name="username">
-        <el-input v-model="form.username"></el-input>
+      <el-form-item label="用户名" required prop="username">
+        <el-input v-model="form.username" name="username"></el-input>
       </el-form-item>
-      <el-form-item label="密码" required prop="password" name="password">
+      <el-form-item label="密码" required prop="password">
         <el-input
           v-model="form.password"
           type="password"
           show-password
           @change="submit"
+          name="password"
         ></el-input>
       </el-form-item>
       <el-form-item>
diff --git a/src/shared/user/signup.vue b/src/shared/Signup/index.vue
similarity index 100%
rename from src/shared/user/signup.vue
rename to src/shared/Signup/index.vue
diff --git a/src/shared/split/index.vue b/src/shared/split/index.vue
index 5aeed8a..3a2fb28 100644
--- a/src/shared/split/index.vue
+++ b/src/shared/split/index.vue
@@ -33,8 +33,8 @@
 </template>
 
 <script setup lang="ts">
-import Resizer from "./resizer.vue"
-import Pane from "./pane.vue"
+import Resizer from "./Resizer.vue"
+import Pane from "./Pane.vue"
 import { computed, ref } from "vue"
 import { classNameToArray } from "element-plus/es/utils"
 
diff --git a/src/shared/store/user.ts b/src/shared/store/user.ts
index 587ae28..7517443 100644
--- a/src/shared/store/user.ts
+++ b/src/shared/store/user.ts
@@ -8,7 +8,7 @@ import { getUserInfo } from "../api"
 
 export const useUserStore = defineStore("user", () => {
   const { data: profile, isFinished, execute } = getUserInfo("")
-  const user = computed(() => profile.value.user || {})
+  const user = computed(() => profile?.value?.user ?? {})
   const isAuthed = computed(() => !!user.value.email)
   const isAdminRole = computed(
     () =>
diff --git a/src/utils/judge.ts b/src/utils/judge.ts
index 78fc432..7afa5c7 100644
--- a/src/utils/judge.ts
+++ b/src/utils/judge.ts
@@ -5,11 +5,11 @@ import { Code } from "./types"
 const http = axios.create({ baseURL: "https://judge0api.hyyz.izhai.net" })
 
 function encode(str: string) {
-  return btoa(unescape(encodeURIComponent(str || "")))
+  return btoa(unescape(encodeURIComponent(str ?? "")))
 }
 
 function decode(bytes: string) {
-  let escaped = escape(atob(bytes || ""))
+  let escaped = escape(atob(bytes ?? ""))
   try {
     return decodeURIComponent(escaped)
   } catch (e) {