package main

//func main() {
//filename := filepath.Join("csv", "test1.csv")
//handle := openCSVFile(filename, ',', true)
//fmt.Println("handle:", handle)
//
//// 测试1：基础写入
//fmt.Println("\n=== 测试1：基础写入 ===")
//// 清空并写入新数据
//newRow := make([][]string, 0)
//newRow = append(newRow, []string{"基础测试行5", "基础值5", "基础数据5", "基础测试5"})
//
//for i := 1; i <= 10; i++ {
//	row := []string{
//		"基础行" + strconv.Itoa(i),
//		"基础值" + strconv.Itoa(i),
//		"基础数据" + strconv.Itoa(i),
//		fmt.Sprintf("基础测试%d", i),
//	}
//	newRow = append(newRow, row)
//}
//
//start := time.Now()
//rows := writeRows(handle, newRow, 0)
//
//elapsed := time.Since(start)
//fmt.Printf("基础写入完成，影响行数: %d，耗时: %v\n", rows, elapsed)
//
//buffer := make([]byte, 4096)
//rowss := readRows(handle, 0, rows, buffer)
//fmt.Printf("读取到 %d 行数据\n", rowss)
//
//decodedRows := decodeRowData(buffer, 4096)
//fmt.Println("合并文件前几行数据:")
//for i, row := range decodedRows {
//	if i >= int(rowss) {
//		break
//	}
//	fmt.Printf("  行 %d: %v\n", i, row)
//}

//// 测试3：读写混合
//fmt.Println("\n=== 测试3：读写混合 ===")
//testMixedOperations(handle)

//file, err := closeCSVFile(handle)
//if err != nil {
//	fmt.Println(err)
//}
//if file == 0 {
//	fmt.Println("\n文件保存成功")
//}
//}