From bd879f18ad1f523e9d8a3ddd0639e7131002dfb8 Mon Sep 17 00:00:00 2001
From: LCJ-MinYa <1049468118@qq.com>
Date: Thu, 29 Jan 2026 17:25:56 +0800
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---
 src/GEMINI.md                      |  16 ++-
 src/router/modules/demo.ts         |   4 +
 src/views/demo/formChangeTrack.vue | 207 +++++++++++++++++++++++++++++
 3 files changed, 222 insertions(+), 5 deletions(-)
 create mode 100644 src/views/demo/formChangeTrack.vue

diff --git a/src/GEMINI.md b/src/GEMINI.md
index dac0e6a..0085ffa 100644
--- a/src/GEMINI.md
+++ b/src/GEMINI.md
@@ -20,13 +20,19 @@
 
 第三阶段：自动化路由配置 (Step 5)
 * 操作目标：修改 src/router/modules/{module}.ts。
-* 执行逻辑：找到文件中的 titleArr 数组变量，并在末尾追加新页面的配置对象**切记只能追加，不能修改原始代码**：
+* 强制前置动作：**必须**先使用 `read_file` 读取该路由文件全文，人工确认 `titleArr` 数组的最后一个条目及其精准内容。
+* 执行逻辑：
+    1. 禁止凭借记忆或模糊搜索进行替换。
+    2. 唯一推荐的 `replace` 策略：找到该数组末尾的 `];` 符号。
+    3. 将其替换为包含新项的完整结构，并保持严格缩进：
 ```javascript
-{
-    key: '{pageName}',
-    title: '{用户定义的中文名称}',
-}
+    {
+        key: '{pageName}',
+        title: '{用户定义的中文名称}',
+    },
+];
 ```
+    4. **验证义务**：修改后必须立即再次 `read_file` 检查，确保原有的最后一条数据依然完整存在，且新数据已正确追加。
 
 第四阶段：验证与总结
 * 编译检查：确保新创建的页面没有语法错误。
diff --git a/src/router/modules/demo.ts b/src/router/modules/demo.ts
index 7646a4f..1a1c614 100644
--- a/src/router/modules/demo.ts
+++ b/src/router/modules/demo.ts
@@ -182,6 +182,10 @@ const titleArr = [
         key: 'ModifyClosureObject',
         title: '如何修改闭包对象',
     },
+    {
+        key: 'formChangeTrack',
+        title: '表单敏感字段变更追踪标记',
+    },
 ];
 
 // @/views/demo/**/*.vue
diff --git a/src/views/demo/formChangeTrack.vue b/src/views/demo/formChangeTrack.vue
new file mode 100644
index 0000000..fe58cc7
--- /dev/null
+++ b/src/views/demo/formChangeTrack.vue
@@ -0,0 +1,207 @@
+<template>
+	<div class="p-5 space-y-5 !bg-gray-100">
+		<el-card header="表单变更追踪示例 (30个字段，监控其中6个)">
+			<template #header>
+				<div class="flex items-center justify-between">
+					<span>表单变更追踪示例 (30个字段，监控其中6个)</span>
+					<el-tag :type="isModifiedFlag ? 'danger' : 'success'">
+						{{ isModifiedFlag ? "敏感字段已修改" : "未检测到敏感修改" }}
+					</el-tag>
+				</div>
+			</template>
+
+			<el-alert
+				title="说明：下方的 [字段1] 到 [字段6] 是被监控的敏感字段。只要它们被修改，右上角的标记就会变红，直到点击保存。"
+				type="info"
+				:closable="false"
+				class="mb-4"
+			/>
+
+			<el-form :model="formData" label-width="100px" label-position="left">
+				<div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
+					<!-- 敏感字段 1-6 -->
+					<el-form-item
+						v-for="i in 6"
+						:key="'field' + i"
+						:label="`字段${i}(监控)`"
+						:class="{ 'is-sensitive': true }"
+					>
+						<el-input
+							v-model="formData['field' + i]"
+							placeholder="修改此项会触发标记"
+						/>
+					</el-form-item>
+
+					<!-- 其他字段 7-15 (Input) -->
+					<el-form-item
+						v-for="i in 9"
+						:key="'field' + (i + 6)"
+						:label="`字段${i + 6}`"
+					>
+						<el-input
+							v-model="formData['field' + (i + 6)]"
+							placeholder="修改此项不触发标记"
+						/>
+					</el-form-item>
+
+					<!-- 其他字段 16-20 (Select) -->
+					<el-form-item
+						v-for="i in 5"
+						:key="'field' + (i + 15)"
+						:label="`字段${i + 15}`"
+					>
+						<el-select
+							v-model="formData['field' + (i + 15)]"
+							class="w-full"
+							placeholder="请选择"
+						>
+							<el-option label="选项A" value="A" />
+							<el-option label="选项B" value="B" />
+						</el-select>
+					</el-form-item>
+
+					<!-- 其他字段 21-25 (Radio) -->
+					<el-form-item
+						v-for="i in 5"
+						:key="'field' + (i + 20)"
+						:label="`字段${i + 20}`"
+					>
+						<el-radio-group v-model="formData['field' + (i + 20)]">
+							<el-radio label="1">状态1</el-radio>
+							<el-radio label="2">状态2</el-radio>
+						</el-radio-group>
+					</el-form-item>
+
+					<!-- 其他字段 26-30 (Switch/Date) -->
+					<el-form-item
+						v-for="i in 5"
+						:key="'field' + (i + 25)"
+						:label="`字段${i + 25}`"
+					>
+						<el-switch
+							v-if="i % 2 === 0"
+							v-model="formData['field' + (i + 25)]"
+						/>
+						<el-date-picker
+							v-else
+							v-model="formData['field' + (i + 25)]"
+							type="date"
+							class="!w-full"
+							placeholder="选择日期"
+						/>
+					</el-form-item>
+				</div>
+
+				<div class="mt-8 flex justify-center space-x-4">
+					<el-button @click="resetForm">重置所有字段</el-button>
+					<el-button type="primary" @click="handleSave">保存修改</el-button>
+				</div>
+			</el-form>
+		</el-card>
+
+		<el-card header="当前敏感字段快照与对比">
+			<div class="grid grid-cols-2 gap-4 text-sm">
+				<div>
+					<p class="font-bold mb-2 text-blue-600">上次保存的快照：</p>
+					<pre class="bg-gray-50 p-3 rounded border">{{
+						JSON.stringify(lastSavedSnapshot, null, 2)
+					}}</pre>
+				</div>
+				<div>
+					<p class="font-bold mb-2 text-green-600">实时计算属性 (isDirty)：</p>
+					<div class="bg-gray-50 p-3 rounded border h-[135px] flex items-center justify-center">
+						<span class="text-lg font-mono" :class="isDirty ? 'text-red-500' : 'text-gray-500'">
+							{{ isDirty ? "TRUE (检测到差异)" : "FALSE (与快照一致)" }}
+						</span>
+					</div>
+				</div>
+			</div>
+		</el-card>
+	</div>
+</template>
+
+<script setup lang="ts">
+import { ref, reactive, computed, watch, onMounted } from "vue";
+import { message } from "@/utils/message";
+
+// 1. 初始化 30 个字段的表单数据
+const formData = reactive<Record<string, any>>({});
+for (let i = 1; i <= 30; i++) {
+	// 初始化默认值
+	if (i <= 20) formData[`field${i}`] = "";
+	else if (i <= 25) formData[`field${i}`] = "1";
+	else if (i % 2 === 0) formData[`field${i}`] = false;
+	else formData[`field${i}`] = null;
+}
+
+// 2. 定义敏感字段列表 (6个)
+const SENSITIVE_FIELDS = ["field1", "field2", "field3", "field4", "field5", "field6"];
+
+// 3. 上次保存的快照 (仅记录敏感字段)
+const lastSavedSnapshot = ref<Record<string, any>>({});
+
+// 4. 标记位：只要曾经修改过就为 true，直到点击保存
+const isModifiedFlag = ref(false);
+
+// 初始化快照
+const updateSnapshot = () => {
+	const snapshot: Record<string, any> = {};
+	SENSITIVE_FIELDS.forEach(field => {
+		snapshot[field] = formData[field];
+	});
+	lastSavedSnapshot.value = snapshot;
+};
+
+onMounted(() => {
+	updateSnapshot();
+});
+
+// 5. 【Computed】优雅地实时对比当前值与快照
+const isDirty = computed(() => {
+	return SENSITIVE_FIELDS.some(field => {
+		return formData[field] !== lastSavedSnapshot.value[field];
+	});
+});
+
+// 6. 【Watch】监听计算属性的变化
+// 当 isDirty 变为 true 时，持久化标记位 isModifiedFlag
+// 即使随后用户把值改回原来的，isModifiedFlag 依然为 true (除非业务逻辑要求改回即复位)
+// 如果业务要求“只要曾经动过就记下”，则如下实现：
+watch(isDirty, newVal => {
+	if (newVal) {
+		isModifiedFlag.value = true;
+		console.log("检测到敏感字段修改，标记已设为 TRUE");
+	}
+});
+
+/**
+ * 保存操作
+ */
+const handleSave = () => {
+	// 更新快照为当前值
+	updateSnapshot();
+	// 重置标记位
+	isModifiedFlag.value = false;
+	message("保存成功，标记已重置", { type: "success" });
+};
+
+/**
+ * 重置表单
+ */
+const resetForm = () => {
+	SENSITIVE_FIELDS.forEach(field => {
+		formData[field] = "";
+	});
+	// 注意：由于 isDirty 变为 true 会触发 watch，导致 isModifiedFlag 变 true
+	// 这是符合“只要有修改”的逻辑的。
+};
+</script>
+
+<style lang="scss" scoped>
+.is-sensitive {
+	:deep(.el-form-item__label) {
+		color: #f56c6c;
+		font-weight: bold;
+	}
+}
+</style>