Python中的 numpy.base_repr()
numpy.base_repr(number, base=2, padding=0)
函数用于返回给定基本系统中数字的字符串表示形式。
例如,十进制数 10 在二进制中表示为 1010,而在八进制中表示为 12。
Syntax : numpy.base_repr(number, base=2, padding=0)
Parameters :
number : Input number. Only an integer decimal number can be used as input.
base : [int, optional] Convert number to the base number system. The valid range is 2-36, the default value is 2.
padding : [int, optional] To add number of zeroes on the left. Default is 0.
Return : String representation of the input number in base system.
代码#1:工作
# Python program explaining
# base_repr() function
import numpy as geek
in_num = 10
print ("Input number : ", in_num)
out_num = geek.base_repr(in_num, base = 2, padding = 0)
print ("binary representation of 10 : ", out_num)
输出 :
Input number : 10
binary representation of 10 : 1010
代码#2:
# Python program explaining
# base_repr() function
import numpy as geek
in_arr = [5, -8, 21 ]
print ("Input array : ", in_arr)
print()
# binary representation of first array
# element without using padding parameter
out_num = geek.base_repr(in_arr[0], base = 2)
print("binary representation of 5")
print ("Without using padding parameter : ", out_num)
# binary representation of first array
# element using padding parameter
out_num = geek.base_repr(in_arr[0], base = 2, padding = 3)
print ("Using padding parameter: ", out_num)
print()
# octal representation of 2nd array
# element without using width parameter
out_num = geek.base_repr(in_arr[1], base = 8, padding = 0)
print("octal representation of -8")
print ("Without using padding parameter : ", out_num)
# octal representation of 2nd array
# element using padding parameter
out_num = geek.base_repr(in_arr[1], base = 8, padding = 4)
print ("Using padding parameter : ", out_num)
print()
# hexa-decimal representation of 3rd array
# element without using padding parameter
out_num = geek.base_repr(in_arr[2], base = 16, padding = 0)
print("hexa-decimal representation of 21")
print ("Without using padding parameter : ", out_num)
# hexa-decimal representation of 3rd array
# element using padding parameter
out_num = geek.base_repr(in_arr[2], base = 16, padding = 3)
print ("Using padding parameter : ", out_num)
输出 :
Input array : [5, -8, 21]
binary representation of 5
Without using padding parameter : 101
Using padding parameter: 000101
octal representation of -8
Without using padding parameter : -10
Using padding parameter : -000010
hexa-decimal representation of 21
Without using padding parameter : 15
Using padding parameter : 00015