--------看了这篇文章，觉得很有意思，后面博友评论的也很多。其实我也一直在纳闷为什么e,r,s,t,i键敲击的最多。后来就用想应该写个程序验证一下，拿起了小半年没有用过的python，费了一个小时，终于搞定。
View Code 1 import os 2 3 alist = [ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,\ 4 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,\ 5 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,\ 6 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,\ 7 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,\ 8 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,\ 9 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,\ 10 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 ] 11 12 13 14 # 15 #list all file in the directory and sub directory 16 #input:directory path 17 #outpur:none 18 # 19 def lstallfl(directory): 20 dirs = os.listdir(directory) 21 22 for item in dirs: 23 if not item.startswith( ' . '): 24 25 if os.path.isdir(directory +item +" /"): 26 # print directory +item +" /" 27 lstallfl(directory +item +" /") 28 29 elif os.path.isfile(directory +item): 30 calculate(directory +item) 31 # end of function 32 33 # 34 #calculate every file 35 #input:none 36 #output:none 37 # 38 def calculate(filepath): 39 #test the filepath 40 if not os.path.isfile(filepath): 41 return 42 if not filepath.endswith( ' c ') or filepath.endswith( ' h '): 43 return 44 else: 45 # print filepath 46 f = open(filepath, ' r ') 47 alllines = f.readlines() 48 f. close() 49 50 for eachline in alllines: 51 statistics(eachline) 52 # end of function 53 54 55 # 56 # statistics the number 57 #input:none 58 #output:none 59 # 60 def statistics(aString): 61 for char in aString: 62 alist [ 255 ] += 1 63 alist [ ord(char) ] += 1 64 # end of function 65 66 # 67 #process the result 68 #input:none 69 #output:none 70 # 71 def finalprocess(): 72 for i in range( 56, 91): 73 alist [ i+32 ] += alist [ i ] 74 alist [ i ] = 0 75 76 for i in range( 32, 65): 77 print i,chr(i),alist [ i ] 78 79 for i in range( 91, 127): 80 print i,chr(i),alist [ i ] 81 # end of function 82 83 #main function 84 if __name__ == ' __main__ ': 85 lstallfl(" /home /archy /SourceCode /") 86 finalprocess(); 87 88 89
上面是写的代码，我们看一下运行结果：
View Code 1 32 457011 2 33 ! 1638 3 34 " 8792 4 35 # 3257 5 36 $ 365 6 37 % 959 7 38 & 8485 8 39 ' 6422 9 40 ( 25822 10 41 ) 25959 11 42 * 104040 12 43 + 7871 13 44 , 13738 14 45 - 17813 15 46 . 8032 16 47 / 13931 17 48 0 18880 18 49 1 9675 19 50 2 5041 20 51 3 1996 21 52 4 1443 22 53 5 1689 23 54 6 1625 24 55 7 1689 25 56 8 0 26 57 9 0 27 58 : 0 28 59 ; 0 29 60 < 0 30 61 = 0 31 62 > 0 32 63 ? 0 33 64 @ 0 34 91 [ 41808 35 92 \ 5029 36 93 ] 29069 37 94 ^ 8194 38 95 _ 29110 39 96 ` 29 40 97 a 52294 41 98 b 18025 42 99 c 39949 43 100 d 29065 44 101 e 91546 45 102 f 30223 46 103 g 19702 47 104 h 18122 48 105 i 65054 49 106 j 1818 50 107 k 9225 51 108 l 36025 52 109 m 21704 53 110 n 54152 54 111 o 56740 55 112 p 43104 56 113 q 2325 57 114 r 62993 58 115 s 61789 59 116 t 87561 60 117 u 30620 61 118 v 9783 62 119 w 7661 63 120 x 6540 64 121 y 9855 65 122 z 6270 66 123 { 6667 67 124 | 2099 68 125 } 6674 69 126 ~ 259
这里统计了ucos操作系统代码和unix操作系统代码，代码量一般，但是我觉得这两个系统的代码写的比较标准比较有代表性。从运行的结果看出，e,r,s,t,i,*,空格键用的比较多，其实我也不知道那位作者是如何统计的，我也只是统计了两个操作系统的代码，可能有偏差，但是我相信偏差不会太大。
有兴趣的博友可以测试一下c#、汇编等语言的键敲击率，也欢迎提出宝贵意见。