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code/g3soft-libs/docs/examples/splitter/basic.vue

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+<script setup lang="ts">
+// 最基础：左右分栏。给了 defaultSize 的一侧固定，另一侧自动填充剩余空间
+import { ref } from 'vue'
+import { G3Splitter, G3SplitterPanel } from '@g3soft/ui'
+
+const lastSizes = ref<number[]>([])
+</script>
+
+<template>
+  <div>
+    <G3Splitter
+      style="height: 200px; border: 1px solid #d9d9d9; border-radius: 8px"
+      @resize="(sizes: number[]) => (lastSizes = sizes)"
+    >
+      <G3SplitterPanel :default-size="240">
+        <div class="pane">左侧 240px（可拖拽调整）</div>
+      </G3SplitterPanel>
+      <G3SplitterPanel>
+        <div class="pane">右侧自动填充</div>
+      </G3SplitterPanel>
+    </G3Splitter>
+
+    <p style="margin: 8px 0 0; font-size: 12px; color: #6b7280">
+      面板宽度：{{ lastSizes.join(' / ') || '（拖拽后显示）' }}
+    </p>
+  </div>
+</template>
+
+<style scoped>
+.pane {
+  padding: 16px;
+  font-size: 13px;
+}
+</style>