stdio.py 文件源码

def hasNextLine():
    """
    Return True if standard input has a next line. Otherwise return
    False.
    """
    global _buffer
    if _buffer != '':
        return True
    else:
        _buffer = sys.stdin.readline()
        if sys.hexversion < 0x03000000:
            _buffer = _buffer.decode('utf-8')
        if _buffer == '':
            return False
        return True

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