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#include<stdio.h>
int main()
{
int sz[10]={0},zm[26]={0},z[26]={0},i,space=0,e=0,t=0;
char c;
printf ( "请输入一段字符,统计其中各字符的数量\n" );
while ((c= getchar ())!= '\n' )
{
if (c<= 'z' &&c>= 'a' )
zm[c- 'a' ]++;
else if (c<= 'Z' &&c>= 'A' )
z[c- 'A' ]++;
else if (c<= '9' &&c>= '0' )
sz[c- '0' ]++;
else if (c== ' ' )
space++;
else
e++;
}
printf ( "\n\n" );
for (i=0;i<=9;i++)
{
t++;
printf ( " %d的个数为%d " ,i,sz[i]);
if (t%3==0)
printf ( "\n" );
}
t=0;
printf ( "\n\n\n" );
for (i=0;i<=25;i++)
{
t++;
printf ( " %c的个数为%d " ,i+97,zm[i]);
if (t%3==0)
printf ( "\n" );
}
t=0;
printf ( "\n\n\n" );
for (i=0;i<=25;i++)
{
t++;
printf ( " %c的个数为%d " ,i+65,z[i]);
if (t%3==0)
printf ( "\n" );
}
t=0;
printf ( "\n\n\n" );
printf ( " 空格的个数为%d\n\n" ,space);
printf ( " 其他字符的个数为%d\n" ,e);
return 0;
}
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再来一则C语言统计输入字符个数的代码
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#include <stdio.h>
#define MAXWORD 30 //单词的最大长度
#define IN 1 //在单词内,即没有遇到空格
#define OUT 0 //在单词外,即遇到了空格
/*word length ==> wl单词长度简称*/
int wl()
{
char c;
int i;
int nc;
int state; //state为单词的状态:IN或OUT;
int overflow; //操过MAXWORD的单词个数
int wl[MAXWORD]; //长度为1~30的的字符长度统计
state = OUT;
nc = 0;
overflow = 0;
for (i = 1; i < MAXWORD; ++i)
wl[i] = 0;
while ((c = getchar ()) != EOF)
if (c == ' ' || c == '\n' || c == '\t' )
{
state = OUT;
if (nc > 0)
if (nc < MAXWORD)
++wl[nc];
else
++overflow;
nc = 0;
}
else if (state == OUT)
{
state = IN;
nc = 1;
}
else
++nc;
for (i = 1; i < MAXWORD; ++i)
printf ( "长度为:%d的单词个数为:%d : \n\n" , i, wl[i]);
return 0;
}
main()
{
wl();
}
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以上所述就是本文的全部内容了,希望大家能够喜欢