Given a decimal number and we have to convert it into binary without using library function.

給定一個十進制數，我們必須不使用庫函數就將其轉換為二進制數。

Example:

例：

    Input: 
10
Output: 
1010

Python code to convert decimal to binary

Python代碼將十進制轉換為二進制

# Python code to convert decimal to binary
# function definition
# it accepts a decimal value 
# and prints the binary value
def decToBin(dec_value):
# logic to convert decimal to binary 
# using recursion
bin_value =''
if dec_value > 1:
decToBin(dec_value//2)
print(dec_value % 2,end = '')
# main code
if __name__ == '__main__':
# taking input as decimal 
# and, printing its binary 
decimal = int(input("Input a decimal number: "))
print("Binary of the decimal ", decimal, "is: ", end ='')
decToBin(decimal)

Output

輸出量

First run:
Input a decimal number: 10
Binary of the decimal  10 is: 1010
Second run:
Input a decimal number: 963
Binary of the decimal  963 is: 1111000011     

翻譯自: https://www.includehelp.com/python/convert-the-decimal-number-to-binary-without-using-library-function.aspx