Question

C语言怎么计算字符长度？

Answer 1

#include
<stdio.h>
#include
<ctype.h>
#define
N
50
int
main()
{
int
chr=0,space=0,dig=0,other=0;
char
string[N];
char
*s;
printf("Please
input
the
string:
");
gets(string);
s=string;
while(*s!='\0')
{
if(isalpha(*s))
chr++;
else
if(isspace(*s))
space++;
else
if(isdigit(*s))
dig++;
else
other++;
s++;
}
printf("Result:\n");
printf("English
chars:
%d\n",chr);
printf("Space:
%d\n",space);
printf("Digit:
%d\n",dig);
printf("Others:
%d\n",other);
return
0;
}
用<ctype.h>会更加简单明了一些，注意要用gets输入字符串才可以包含空格，用scanf则不可以