From 860c0e3150a7cb92f9dcf856d6b0b44320177ff6 Mon Sep 17 00:00:00 2001
From: liyi <m18269109817@163.com>
Date: Wed, 4 Dec 2024 17:26:33 +0800
Subject: [PATCH] =?UTF-8?q?fix:=E5=AE=8C=E5=96=84crc32=E8=AE=A1=E7=AE=97?=
 =?UTF-8?q?=E6=A0=A1=E9=AA=8C?=
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---
 lib/main.dart | 51 ---------------------------------------------------
 1 file changed, 51 deletions(-)

diff --git a/lib/main.dart b/lib/main.dart
index b6c301cc..619ff130 100755
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -108,54 +108,3 @@ void findChineseCharacters(Directory directory) {
 bool hasChineseCharacters(String input) {
   return RegExp(r'[\u4e00-\u9fa5]').hasMatch(input);
 }
-
-
-//ToDo: 挪到可用位置这里可删掉
-/** 
- * 计算 CRC16 校验值
-void calculateCrc16() {
-  const String payload = 'hello';
-
-  // 将字符串转换为 Uint8List
-  final Uint8List uint8Payload = stringToUint8List(payload);
-
-  // 使用自定义 CRC32 算法
-  final int crc32Value = crc32Uint16(uint8Payload);
-
-  print('************ input 为 "$payload" 的 CRC32 值为 $crc32Value');
-}
-
-// 将字符串转换为 Uint8List
-Uint8List stringToUint8List(String input) {
-  return Uint8List.fromList(utf8.encode(input));
-}
-
-// 自定义 CRC32 实现
-int crc32Uint16(Uint8List data) {
-  const int polynomial = 0xD5828281;
-
-  // 创建 CRC32 表
-  final List<int> table = List<int>.generate(256, (i) {
-    int crc = i;
-    for (int j = 0; j < 8; j++) {
-      if ((crc & 1) != 0) {
-        crc = (crc >> 1) ^ polynomial;
-      } else {
-        crc >>= 1;
-      }
-    }
-    return crc;
-  });
-
-  // 计算 CRC32 校验值
-  int crc = 0xFFFFFFFF;
-  for (final int byte in data) {
-    crc = (crc >> 8) ^ table[(crc ^ byte) & 0xFF];
-  }
-
-  crc ^= 0xFFFFFFFF;
-
-  // 返回 CRC32 的低 16 位
-  return crc & 0xFFFF;
-}
- */