1.错误处理
data=open('sketch.txt')
for each_line in data:
try:
(role,spoken_line)=each_line.split(':',1)
print(role,end='')
print(' said:',end='')
print(spoken_line,end='')
except:
pass
data.close()
2.如果是文件被删除的情况,上面的代码处理不了,对其进行改进:
try:
data=open('sketch.txt')
try:
for each_line in data:
(role,spoken_line)=each_line.split(':',1)
print(role,end='')
print(' said:',end='')
print(spoken_line,end='')
except:
pass
data.close()
except:
print('the data file is missing')
3.上面的异常处理太过一般化,可以特定指定异常,输出异常信息,优化代码如下:
try:
data=open('sketch.txt')
for each_line in data:
try:
(role,spoken_line)=each_line.split(':',1)
print(role,end='')
print(' said:',end='')
pirnt(spoken_line,end='')
except ValueError:
pass
data.close()
except IOError:
print('the data file is missing')