The computer cannot make use of that printing. return is how a function gives back a value. This value is often unseen by the human user, but it can be used by the computer in further functions. On a more expansive note, print will not in any way affect a function.
The print() function writes, i.e., "prints", a string or a number on the console. The return statement does not print out the value it returns when the function is called. It however causes the function to exit or terminate immediately, even if it is not the last statement of the function.
Definition and Usage
The print() function prints the specified message to the screen, or other standard output device. The message can be a string, or any other object, the object will be converted into a string before written to the screen.
The printf() function is used for printing the output. It returns the number of characters that are printed. If there is some error then it returns a negative value.
A return is a value that a function returns to the calling script or function when it completes its task. A return value can be any one of the four variable types: handle, integer, object, or string. The type of value your function returns depends largely on the task it performs.
Explanation: True, A function cannot return more than one value at a time. because after returning a value the control is given back to calling function.
After the function calculates the value, it can return the result so it can be stored in a variable; and you can use this variable in the next stage of the calculation.
The fprintf() , printf() , and sprintf() functions return the number of characters output, or a negative value if an output error occurs.
To return a value from a function, you must include a return statement, followed by the value to be returned, before the function's end statement. If you do not include a return statement or if you do not specify a value after the keyword return, the value returned by the function is unpredictable.
print() Return Value
It doesn't return any value; returns None .
Yes. Although it's rather special in some ways, printf is just another function. And a function call can be part of an expression. And the arguments you pass to functions are themselves expressions.
The print() function accepts an object as a parameter, such as a string, a number, or a list. It is then converted to a string through an implicit call of the built-in str() function and the value is printed to an output stream.
Use print when you want to show a value to a human. return is a keyword. When a return statement is reached, Python will stop the execution of the current function, sending a value out to where the function was called. Use return when you want to send a value from one point in your code to another.
In Python 3, print , a function, always returns None .
It's allowed in Python 3. x, but is primarily meant to be used with coroutines - you make asynchronous calls to other coroutines using yield coroutine() (or yield from coroutine() , depending on the asynchronous framework you're using), and return whatever you want to return from the coroutine using return value .
A Python function can return any object such as a list. To return a list, first create the list object within the function body, assign it to a variable your_list , and return it to the caller of the function using the keyword operation “ return your_list “.
Strings in C are arrays of char elements, so we can't really return a string - we must return a pointer to the first element of the string. All forms are perfectly valid.
A function can also return objects either by value or by reference. When an object is returned by value from a function, a temporary object is created within the function, which holds the return value. This value is further assigned to another object in the calling function.
The printf() and scanf() functions are used for input and output in C language. Both functions are inbuilt library functions, defined in stdio. h (header file).
A return statement ends the execution of a function, and returns control to the calling function. Execution resumes in the calling function at the point immediately following the call. A return statement can return a value to the calling function.
Print Function in C, C++, and Python
Print function is used to display content on the screen.
A structure can be returned from a function using the return keyword. Structures can be passed into functions either by reference or by value. An array of structures can also be passed to a function.
Every function must have at least one return statement. A procedure is not required to have any return statements. The expression in a function's return statement must evaluate to a type that matches the return type in the function's declaration. Example program illustrating both types of return statement.
As you already know a function can return a single variable, but it can also return multiple variables. We'll store all of these variables directly from the function call.