關於抽值問題

detion9

利用列表，或者字典，名字key，value为一个list由数值组成

icymirror

回复 1# s1034619
假定所有数据在data.txt文件中，代码如下：

1. def ReadDataFile(filename):
   
2.     data = []
   
3.     with open(filename, 'r') as handle:
   
4.         head = handle.readline().strip().split()
   
5.         for line in handle.readlines():
   
6.             data.append(line.strip().split())
   
7.     return head, data
   
8. 
   
9. def PrintItems(*items):
   
10.     for item in items:
    
11.         print item,
    
12.     print
    
13. 
    
14. def main():
    
15. 
    
16.     seperator = "-" * 70   
    
17.    
    
18.     head, data = ReadDataFile("data.txt")
    
19. 
    
20.     print "Printing Header"
    
21.     print seperator
    
22.     PrintItems(head)
    
23.     print
    
24.    
    
25.     # 1. just print random selected line:
    
26.     print "Printing Selected line"
    
27.     print seperator
    
28.     total = len(data)
    
29.     from random import randint
    
30.     position = randint(0, total-1)
    
31.     PrintItems(data[position])
    
32.     print
    
33.    
    
34.     # 2. print line by line
    
35.     print "Printing All lines"
    
36.     print seperator
    
37.     for record in data:
    
38.         PrintItems(record)
    
39.     print
    
40.    
    
41.     print "Over!"
    
42.    
    
43. 
    
44. if __name__=='__main__':
    
45.     main()

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