python3程序开发指南（第2版）

tomer

1. 
   
2. print("Type integers,each followed by Enter;or just Enter to finish")
   
3. total=0
   
4. count=0
   
5. while True:
   
6.     line=input("integer:")
   
7.     if line:
   
8.       try:
   
9.         number=int(line)
   
10.       except ValueError as err:
    
11.         print(err)
    
12.         continue
    
13.       total+=number
    
14.       count+=1
    
15.       except EOFError:
    
16.         break
    
17. if count:
    
18.     print("count=",count,"total=",total,"mean=",total/count)
    

复制代码

执行：

1. 
   
2. File "E:\pythonspace\p`\src\p2.py", line 19
   
3.     except EOFError:
   
4.          ^
   
5. SyntaxError: invali
   

复制代码

whitelotus19

1. #!/usr/bin/env python
   
2. # -*- coding: utf-8 -*-
   
3. 
   
4. print("Type integers,each followed by Enter;or just Enter to finish")
   
5. total=0
   
6. count=0
   
7. while True:
   
8.     line=input("integer:")
   
9.     if line:
   
10.         try:
    
11.             number=int(line)
    
12.         except ValueError as err:
    
13.             print(err)
    
14.             continue
    
15.     else:
    
16.         break
    
17.     total+=number
    
18.     count+=1
    
19. 
    
20. if count:
    
21.     print("count=",count,"total=",total,"mean=",total/count)
    

复制代码