fix

src/components/SelectLanguage.vue

@@ -1,16 +1,31 @@
 <script lang="ts" setup>
 import type { SelectOption } from "naive-ui"
-import { h } from "vue"
+import { h, computed, watch } from "vue"
 import { code } from "../composables/code"
+import { isMobile } from "../composables/breakpoints"
 
-const LANGS = [
+const LANGS = computed(() => {
+  const allLangs = [
     ["python", "Python"],
     ["turtle", "海龟绘图"],
     ["c", "C 语言"],
     ["cpp", "C++"],
-]
+  ]
+  if (isMobile.value) {
+    return allLangs.filter(([lang]) => lang !== "turtle")
+  }
+  return allLangs
+})
 
-const languages: SelectOption[] = LANGS.map((it) => ({
+// 如果当前在移动端且语言是海龟绘图，自动切换到 Python
+watch(isMobile, (mobile) => {
+  if (mobile && code.language === "turtle") {
+    code.language = "python"
+  }
+})
+
+const languages = computed<SelectOption[]>(() =>
+  LANGS.value.map((it) => ({
     value: it[0],
     label: () => [
       h("img", {
@@ -24,7 +39,8 @@ const languages: SelectOption[] = LANGS.map((it) => ({
       }),
       it[1],
     ],
-}))
+  })),
+)
 </script>
 <template>
   <n-select