异常处理、捕捉异常
first=input('输入除数:') second=input('输入被除数:') try: first = int(first) second = int(first) res = first/second li=[1,2,3,4] except Exception as e: print(e) print('出错了') else: print('没出错') print(res) finally:#出错没出错都会执行它 print('我是小蕊')