Python：如何检查文件是否编码为 UTF16

要确定文件是否编码为 UTF-16，你可以检查文件开头是否存在字节顺序标记（BOM）。UTF-16 编码的文件通常以 BOM 开头，小端序为 0xFEFF，大端序为 0xFFFE。

is_utf16.py

def is_utf16(filename):
    with open(filename, 'rb') as file:
        start = file.read(2)
        return start in [b'\xff\xfe', b'\xfe\xff']

# Example usage
filename = 'test.txt'
if is_utf16(filename):
    print(f"The file '{filename}' is encoded as UTF-16.")
else:
    print(f"The file '{filename}' is NOT encoded as UTF-16.")

def is_utf16(filename):
    with open(filename, 'rb') as file:
        start = file.read(2)
        return start in [b'\xff\xfe', b'\xfe\xff']

# Example usage
filename = 'test.txt'
if is_utf16(filename):
    print(f"The file '{filename}' is encoded as UTF-16.")
else:
    print(f"The file '{filename}' is NOT encoded as UTF-16.")

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