00 异常处理 p185
4.5 异常处理 p185
try:
val = input('请输入数字:')
num = int(val)
except Exception as e:
print('操作异常')
# import requests
#
# try:
# ret = requests.get('http://www.google.com')
# print(ret.text)
# except Exception as e:
# print('请求异常')
def func(a):
try:
return a.strip()
except Exception as e:
pass
return False
v = func('alex')
if not v:
print('函数执行失败')
else:
print('结果是',v)