# 二进制:
def binary(number):
number_str = ''
shang = number
while 1:
number_str += str(shang % 2)
shang = shang // 2
if shang == 0:
break
number_str = number_str[::-1]
return '0b' + number_str
print(binary(100))
# 八进制
def octal(number):
number_str = ''
shang = number
while 1:
number_str += str(shang % 8)
shang = shang // 8
if shang == 0:
break
number_str = number_str[::-1]
return '0o' + number_str
print(octal(100))
# 十六进制
def hexam(number):
dic = {10: 'a',11:'b',12:'c',13:'d',14:'e',15:'f'}
# 这个空字符串用来保存余数
string = ''
while 1:
# 先得到余数
yushu = number % 16
#判大于断余数是不是10
if yushu >= 10:
string += dic[yushu]
else:
string += str(yushu)
number //= 16
if number == 0:
break
return '0x' + string[::-1]
print(hexam(1000))