晴问-二进制转十进制

dec = input()
decimal_number = int(dec, 2) 
print(decimal_number)

binary_number = '101010'
decimal_number = int(binary_number, 2)  # 二进制转换为十进制
octal_number = oct(decimal_number)      # 十进制转换为八进制
hexadecimal_number = hex(decimal_number)  # 十进制转换为十六进制

print('二进制数:', binary_number)
print('转换为十进制:', decimal_number)
print('转换为八进制:', octal_number)
print('转换为十六进制:', hexadecimal_number)

菜鸟给的例子，学会啦！