" // " means to divide by an integer and return an integer, e.g. 7/3 results in 2.
" / " denotes division by a floating-point number, which returns a floating-point number (i.e., a decimal), e.g., 8/2 results in 4.0.
" %" means to take a remainder. For example, 7/4 results in 3.
The sample code is as follows:
It can be run directly in pycharm environment.
a = 321
b = a//100
c = a//10 % 10
d = a % 10
print("The hundredth digit is %d." % b)
print("The tenth digit is %d." % c)
print("The single digit is %d." % d)
The output is as follows.
Expansion:
Using the divmod() function will get both the quotient and remainder The walkthrough code for the IDLE environment is as follows:
>>> divmod(13,3) (4, 1)
The divmod() function returns a tuple
a = 4321
b = a //1000
c = a //100 %10
d = a //10%10
e = a%10
print("Thousands are",b)
print("Hundreds are",c)
print("The ten digits are",d)
print("Single digit yes.",e)
a = 54321
b = a //10000
c = a //1000 %10
d = a //100%10
e = a//10%10
f = a%10
print("The ten-thousandth digit is",b)
print("Thousands are",c)
print("Hundreds are",d)
print("The ten digits are",e)
print("Single digit yes.",f)
The output result is:
The mantissa is 5.
The thousandth digit is 4.
The hundredth digit is 3.
The tenth digit is 2.
The first digit is 1.
P.S.: A one-minute look at the difference between // and / and % usage in Python
/ (regular except)
As:
5 / 2 = 2.5
Explanation: The usual division is whatever the result is.
// (flooring excepted)
E.g..
5 // 2 = 2 （5 ÷ 2 = 2.5）
5 // 3 = 1 (5 ÷ 3 = 1.6666666666666667)
Explanation: Floor division, removing only the integer portion after the finish.
% (remainder)
As:
5 % 2 = 1 （5 - 2*2 = 1）
4 % 2 = 0 （4 - 2*2 = 0）
7 % 3 = 1 （7 - 3*2 = 1）
13 % 5 = 3 （13 - 5*2 = 3）
Explanation: It is an operation of taking a remainder, dividing by a multiple of the divisor and getting the remainder. The red numbers above indicate the multiples of the divisor.
summarize
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