A05.异常处理.txt

1.异常处理的格式
	try:
		程序
	exception Exception as err:		#err异常名称
		异常处理部分

 例子:
try:
    for i in range(0,10):
        print(i)
        if(i==4):
            print(df)		#出现异常
    print("end circle")
except Exception as err:
    print(err)
print("end codes")

另:
for i in range(0,10):
	try:
		print(i)
		if(i==4):
			print(df)
	except Exception as err:
		print(err)
print("end codes")