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76 lines
1.5 KiB
76 lines
1.5 KiB
import struct
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def int_list_to_bytes(int_list):
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'''
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int列表转换为字节流
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'''
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byte_stream = b''
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for num in int_list:
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byte_stream += struct.pack('>H', num)
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return byte_stream
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def bytes_to_int_list(byte_stream):
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'''
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字节流转换为int列表
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'''
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int_list = []
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for i in range(0, byte_stream.__len__(), 2):
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int_list.append(struct.unpack('>H', byte_stream[i:i+2])[0])
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return int_list
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def get_bit(data: int, bit: int) -> int:
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'''
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获取某比特的值
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'''
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if data & (1 << bit):
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return 1
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else:
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return 0
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def get_bit_bool(data: int, bit: int) -> bool:
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'''
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获取某比特的值，并转换为布尔值
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'''
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return bool(get_bit(data, bit))
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def set_bit(number: int, pos: int, value: int):
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'''
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修改某比特的值，并返回新值
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'''
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new_number = None
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if value == 1:
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new_number = number | (1 << pos)
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elif value == 0:
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new_number = number & ~(1 << pos)
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return new_number
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# float value to 2 int list
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def float2intList(dataf: float):
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parts = struct.pack('>f', float(dataf))
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output = parts[2:] + parts[:2]
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vl_output = bytes_to_int_list(output)
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return vl_output
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# 2 int list to float value
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def intList2Float(intList = []):
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# print("intList: ", intList)
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r_drawer = int_list_to_bytes(intList)
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routput = r_drawer[2:] + r_drawer[:2]
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floatValue = struct.unpack('>f', routput)
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return round(floatValue[0], 3) |