看不懂此程式此两行的意思 caveNumber = chooseCave() checkCave(caveNumber) 能否请高手解释一下呢?? 谢谢 原程式如下 import random import time def displayIntro(): print('Your are in a land full of dragons. In front of you,') print('you see two caves. In one cave, the dragon is friendly') print('and will share his treasure with you. The other dragon') print('is greedy and hungry, and wil eat you on sight.') print() def chooseCave(): cave = '' while cave != '1' and cave != '2': print('Which cave will you go into? (1 or 2)') cave = input() return cave def checkCave(chosenCave): print('You approach the cave...') time.sleep(2) print('It is dark and spooky...') time.sleep(2) print('A large dragon jumps out in front of you! He opens his jaws and ...') print() time.sleep(2) friendlyCave = random.randint(1,2) if chosenCave == str(friendlyCave): print('Gives you his treasure!') else: print('Gobbles you down in one bite!') playAgain = 'yes' while playAgain == 'yes' or playAgain == 'y': displayIntro() caveNumber = chooseCave() checkCave(caveNumber) playAgain = input('Do you want to play again? (yes or no)\n')