I tried to make just add print(a b) and I only got what it equals I don't know what to do I can't find it or look for it online.

CodePudding user response：

You are mixing up printing a string vs. printing an expression.

Printing a string like print('hello world') will print the literal message because you've indicated it's a string with quotes.

However, if you provide an expression like print(a b), it will evaluate that expression (calculate the math) and then print the string representation of that evaluation.

Now, what you want is actually a mix of both, you want to print a string that has certain parts replaced with an expression. This can be done by "adding" strings and expressions together like so:

print(a ' ' b '=' (a b))

Notice the difference between without quotes and ' ' with quotes. The first is the addition operator, the second is the literal plus character. Let's break down how the print statement parses this. Let's say we have a = 5 and b = 3. First, we evaluate all the expressions:

print(5 ' ' 3 '=' 8)

Now, we have to add a combination of numbers with strings. The operator acts differently depending on context, but here it will simply convert everything into a string and then "add" them together like letters or words. Now it becomes something like:

print('5' ' ' '3' '=' '8')

Notice how each number is now a string by the surrounding quotes. This parses to:

print('5 3=8')

which prints the literal 5 3=8

CodePudding user response：

You mean like that:

a = int(input("Give me a number man: "))
b = int(input("Give me another number: "))
print(f'print({a}   {b}) = {a   b}')
print(f'print({a} - {b}) = {a - b}')
print(f'print({a} * {b}) = {a * b}')
print(f'print({a} // {b}) = {a // b}')
print("Look at all those maths!")

Output

Give me a number man: 3
Give me another number: 2
print(3   2) = 5
print(3 - 2) = 1
print(3 * 2) = 6
print(3 // 2) = 1
Look at all those maths!