求修改

[rdw110]

#include<stdio.h>
#include<ctype.h>

#define MAXHIST 15
#define MAXCHAR 128

int main(void)
{
int c, i;
int len;
int maxvalue;
int cc[MAXCHAR];

for(i = 0; i < MAXCHAR ; ++ i)
cc[i] = 0;
while((c == getchar()) != EOF)
if(c < MAXCHAR)
++cc[c];
maxvalue = 0;
for(i = 1; i < MAXCHAR ; ++ i)
if(cc[i] > maxvalue)
maxvalue = cc[i];

for(i = 1; i < MAXCHAR ; ++ i)
{
if(isprint(1))
printf("%5d - %c - %5d :", i , i , cc[i]);
else
printf("%5d - - %5d :", i , cc[i]);
if(cc[i] > 0)
{
if((len = cc[i] * MAXHIST / maxvalue) <= 0)
len = 1;
}
else
len = 0;
while(len > 0)
{
putchar('*');
-- len;
}
putchar('\n');
}
}

[狂且]

    while((c = getchar()) != EOF) // 赋值不是等于 

其他的自己运行看看对不对! 慢慢调吧!