python之再学习----简单的异常

# filename:python3.4.py
# author:super
# date:2018-03-04

# try except 的时候 要把具体的except 内容打印出来
# 如果不想做任何处理 可以在except 后面加上pass 就直接跳过

try:
    5/0
except ZeroDivisionError:
    print("you can not /0")

print("put ‘q‘ is quit")
print("please input two number:")

while True:
    firstnumber = input("\nplease input the firstnumber:")
    if firstnumber == ‘q‘:
        break
    secondnumber = input("please input the second number:")
    if secondnumber == ‘q‘:
        break
    try:
        result = int(firstnumber) / int(secondnumber)
        print(result)
    except ZeroDivisionError:
        pass
# print("the secondnumber could not be 0")