c-文字列「アルファベット、スペース、数字、その他の文字」の個数と行数を統計する.

 1 #include <stdio.h>

 2 #include <ctype.h>

 3 

 4 using namespace std;

 5 

 6 /*

 7   ：      ，           、  、          。

 8 */

 9 

10 void

11 count() {

12     //    .

13     int letters = 0; 

14     int spaces = 0; 

15     int digit = 0;

16     int others = 0;    

17     char curChar;

18     //    , (   )         ,'
'  ASCII  10,   0,     '
'  (       ).

19     while((curChar = getchar()) != '
') {

20         if(isalpha(curChar))    //    curChar       ，   c      “isupper(curChar)||islower(curChar)”

21             ++letters;

22         else if(isdigit(curChar))    //    curChar        0 9.

23             ++digit;

24         else if(isspace(curChar))

25             ++spaces;

26         else ++others;

27     }

28 

29     printf("letters:%d, digits:%d, spaces:%d,others:%d
", letters, digit, spaces, others);

30     //cout<<"letters:"<<letters<<",digits:"<<digit<<",spaces:"<<spaces<<",others:"<<others<<endl;

31 }

32 

33 //    .

34 int

35 countLines(char *input) {

36     int lns = 0;

37     while(gets(input))

38         ++lns;

39     return lns;

40 }

41 

42 int

43 main(void) {

44     printf("enter a string:");

45     count();

46 

47     //char *t;

48     //gets(t);    

49     //Run-Time Check Failure #3 - The variable 't' is being used without being initialized.

50     /*

51           ,        gets                't',       .        ,t        (             ),  gets        .

52     */

53 

54     char cs[10240];

55     int lns = countLines(cs);

56     printf("lines:%d
", lns);

57 }