Understand types of code?

Python
1

can someone explain how to deal with different types of codes and when the code is string or int or…

2

Care to elaborate? what do you mean ‘deal with’ ? and what’s your purpose in “dealing with” the different types? Something like multiplying a string with an int?

3

Shure I care
i mean exactly what you said

4

Python language provides a built-in method to transfer string into int and float type or the other around. like this:

a_str = '12'
b_num = 3
result = int(a_str) * b_num
print(result)
5

can you go deeper in explaining?
when should I use int() and when not?
when the code is a string and when it’s int …?
give me some examples, please
thank you so much

6

In simple terms, you can only operate two same types of variables,otherwise, you should get an error report, I’ll show you some examples:

a = 1  # a number 
b = "0.5" # a string ,but can be transfered to a int number
c = '10' # a string ,but can be transfered to a float number
d = "not numeric"  # pure string which cannot be transfered to a number

print(a + b)  # this will report error message for I plus a int number with a string

print (b + c) # this output will be "0.510" instead of 10.5 because a string plus a string means concat, not add

print(a + int(c) )  # this output will be 11 because I use 'int()' method to transfer the string into a integer

print( a+ float(b) )   # this output will be 1.5 because  I use 'float()' method to transfer the string into a float number

print( a + int(d) )  # this will report error message because you can never transfer the variable 'd' into a number
2 Likes
7

I get it
this is so useful and helpful
thank you so much for helping

8

Don’t mention it！I’m glad I can help.

1 Like