73 lines
2.0 KiB
Python
73 lines
2.0 KiB
Python
"""
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物流小车控制指令 - 校验和算法工具（交互式）
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用法:
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python checksum.py # 启动交互模式，手动输入指令计算校验和
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"""
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import sys
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import io
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if sys.platform == 'win32':
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sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace')
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sys.stderr = io.TextIOWrapper(sys.stderr.buffer, encoding='utf-8', errors='replace')
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def calc_checksum(data: str) -> str:
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"""计算校验和：ASCII码求和 % 256 → 2位十六进制"""
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total = sum(ord(c) for c in data)
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return format(total % 256, '02X')
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def print_ascii_detail(data: str):
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"""打印每个字符的 ASCII 码值"""
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print(f"\n 原始字符串: {data}")
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print(f" ASCII 码分解:")
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total = 0
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parts = []
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for c in data:
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val = ord(c)
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total += val
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parts.append(f"'{c}'({val})")
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print(" " + " + ".join(parts))
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print(f" 总和 = {total}")
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print(f" 取余 = {total} % 256 = {total % 256}")
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print(f" 十六进制 = {calc_checksum(data)}")
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def main():
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print("\n" + "=" * 55)
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print(" 物流小车指令校验和工具（交互式）")
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print(" 输入原始字符串，自动计算校验和并生成完整指令")
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print(" 输入 q 退出")
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print("=" * 55)
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while True:
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print(f"\n{'─' * 55}")
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raw = input("\n 请输入指令内容（如 LOGI:GS:001）: ").strip()
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if raw.lower() in ('q', 'quit', 'exit'):
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print("\n 再见！\n")
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break
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if not raw:
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continue
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# 如果用户输入的不是以 LOGI: 开头，自动拼接
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if not raw.upper().startswith('LOGI:'):
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print(f"\n [提示] 检测到未包含帧头，已自动添加 LOGI:")
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raw = 'LOGI:' + raw
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cs = calc_checksum(raw)
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full_cmd = f"{raw}:{cs}#"
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# 显示计算过程
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print_ascii_detail(raw)
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print(f"\n >>> 完整指令: {full_cmd}")
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if __name__ == '__main__':
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main()
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