feat: 添加配置导入功能

将重置参数按钮改为导入配置按钮，并实现TOML文件解析和参数导入功能

webui/src/components/ParameterForm.vue

@@ -267,11 +267,11 @@
                 class="px-8"
               />
               <q-btn
-                color="grey-7"
+                color="orange"
                 size="lg"
-                label="重置参数"
-                icon="refresh"
-                @click="resetParams"
+                label="导入配置"
+                icon="upload"
+                @click="importConfig"
                 class="px-8"
               />
               <q-btn
@@ -284,6 +284,15 @@
               />
             </div>
 
+            <!-- 隐藏的文件输入 -->
+            <input
+              ref="fileInput"
+              type="file"
+              accept=".toml"
+              style="display: none"
+              @change="handleFileSelect"
+            />
+
             
 
             <!-- 错误信息 -->
@@ -355,6 +364,7 @@ const calculating = ref(false)
 const result = ref<string | null>(null)
 const error = ref<string | null>(null)
 const logRef = ref<InstanceType<typeof LogComponent> | null>(null)
+const fileInput = ref<HTMLInputElement | null>(null)
 
 const voltageOptions = [
   '110kV', '220kV', '330kV', '500kV', '750kV','1000kV',
@@ -440,13 +450,6 @@ const calculate = async () => {
   }
 }
 
-// 重置参数
-const resetParams = () => {
-  Object.assign(params, JSON.parse(JSON.stringify(defaultParams)))
-  result.value = null
-  error.value = null
-}
-
 // 将参数转换为 TOML 格式
 const tomlStringify = (obj: any, indent: string = ''): string => {
   let result = ''
@@ -471,6 +474,72 @@ const tomlStringify = (obj: any, indent: string = ''): string => {
   return result
 }
 
+// 解析 TOML 格式字符串
+const parseToml = (tomlStr: string): any => {
+  const result: any = {}
+  let currentSection: any = result
+  let currentSectionName = ''
+
+  const lines = tomlStr.split('\n')
+  
+  for (let line of lines) {
+    line = line.trim()
+    
+    // 跳过空行和注释
+    if (!line || line.startsWith('#')) continue
+    
+    // 匹配 section [xxx]
+    const sectionMatch = line.match(/^\[([^\]]+)\]$/)
+    if (sectionMatch) {
+      currentSectionName = sectionMatch[1]
+      currentSection = {}
+      result[currentSectionName] = currentSection
+      continue
+    }
+    
+    // 匹配 key = value
+    const kvMatch = line.match(/^([^=]+)=(.*)$/)
+    if (kvMatch) {
+      const key = kvMatch[1].trim()
+      let value: any = kvMatch[2].trim()
+      
+      // 解析数组 [1, 2, 3]
+      if (value.startsWith('[') && value.endsWith(']')) {
+        const arrStr = value.slice(1, -1).trim()
+        if (arrStr) {
+          value = arrStr.split(',').map((s: string) => {
+            s = s.trim()
+            if (s.startsWith('"') && s.endsWith('"')) {
+              return s.slice(1, -1)
+            }
+            return isNaN(Number(s)) ? s : Number(s)
+          })
+        } else {
+          value = []
+        }
+      }
+      // 解析字符串 "xxx"
+      else if (value.startsWith('"') && value.endsWith('"')) {
+        value = value.slice(1, -1)
+      }
+      // 解析布尔值
+      else if (value === 'true') {
+        value = true
+      } else if (value === 'false') {
+        value = false
+      }
+      // 解析数字
+      else if (!isNaN(Number(value))) {
+        value = Number(value)
+      }
+      
+      currentSection[key] = value
+    }
+  }
+  
+  return result
+}
+
 // 导出配置
 const exportConfig = async () => {
   try {
@@ -500,6 +569,44 @@ const exportConfig = async () => {
   }
 }
 
+// 导入配置 - 触发文件选择
+const importConfig = () => {
+  fileInput.value?.click()
+}
+
+// 处理文件选择
+const handleFileSelect = async (event: Event) => {
+  const input = event.target as HTMLInputElement
+  const file = input.files?.[0]
+  if (!file) return
+  
+  try {
+    const content = await file.text()
+    const importedParams = parseToml(content)
+    
+    // 合并导入的参数到当前参数
+    if (importedParams.parameter) {
+      Object.assign(params.parameter, importedParams.parameter)
+    }
+    if (importedParams.advance) {
+      Object.assign(params.advance, importedParams.advance)
+    }
+    if (importedParams.optional) {
+      Object.assign(params.optional, importedParams.optional)
+    }
+    
+    logRef.value?.addLog('info', `成功导入配置: ${file.name}`)
+    result.value = null
+    error.value = null
+  } catch (e: any) {
+    error.value = e.message || '导入失败'
+    logRef.value?.addLog('error', e.message || '导入失败')
+  }
+  
+  // 清空 input 以便可以重复选择同一个文件
+  input.value = ''
+}
+
 // 声明 pywebview API 类型
 declare global {
   interface Window {