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This article is to share with you about the usefulness of return in python. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The return statement is used to exit the function and return an expression to the caller. When the return statement is executed, the function is exited and the statement after return is no longer executed.

Such as:

Def my_print (x): if x = = 1: return False print ('i am xiaotao') return Truea = my_print (1) # satisfies if, executes return False, no longer executes subsequent statements, and jumps out of the function. Print (a) # output: False

Put the return statement in the try statement block, and the statements after the return will be executed

Def fun (): print (98) return 'ok' # when the return statement is executed, the function terminates The following statement no longer executes print (98) def func (): try: print (98) return 'ok' # function gets a return value finally: # statements in the finally statement block still execute print (98) print (fun ()) print (' -') print (func ())

Output:

ninety-eight

Ok

-

ninety-eight

ninety-eight

Ok

Return returns None by default without parameters (or without writing a return statement).

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