一个字符中有若干%，按%分割，怎么作，不能用系统函数，只能用指针！！！还要打印出%个数和分割的字符串内容！

你找找%符号的ascii码，然后移动指针去逐个判断

定义一个数组指针，比如char (*p)[50];令p[0]指向字符串开头，一个个读取字符，判断如果是%计数器加一，并且将上一个%后面到这个%之间的字符存入p[i]中，输出时直接puts(p[i]);

#include <stdio.h>
#include <stdlib.h>

#define MAX_BUFFER 18

int main(void)
{
    char *buffer = NULL;
    char *temp[28] = {NULL};
    int count = 0;
    int zi_count = 0;
    int count2 = 0;
    int size_temp = 0;
    int i = 0;
    int j = 0;

    buffer = (char*)malloc(MAX_BUFFER);
    while((buffer[count] = getchar()) !='\n')
    {
        if(buffer[count] == '%')
        {
            zi_count++;
            count2 = count;
        
            /*读取上一个单词*/
            while(buffer[--count2] != '%' && count2>=0)
            size_temp++;

            temp[i] = (char*)malloc(size_temp+1);
   
            while(buffer[++count2] != '%')
                temp[i][j++] = buffer[count2];
            temp[i++][j] = '\0';
            j = 0;
        }
        count++;
    }

    /*输出*/
    for(j=0;j<i;j++)
        printf("%s\n",temp[j]);
    printf("Have %d of %c\n",zi_count,'%');

    return 0;
}

这个做的不是太好,必须得在输入最后加上一个'%'
还可以改进改进，楼主在想想吧，加油

#include <stdio.h>
#include <stdlib.h>

#define MAX_BUFFER 30

int main(void)
{
    char *buffer = NULL;
    int count = 0;
    int zi_count = 0;
    int i = 0;

    buffer = (char*)malloc(MAX_BUFFER);
    while((buffer[count] = getchar()) !='\n')
    {
        if(buffer[count] == '%')
        {
            buffer[count] = '\n';
            zi_count++;
        }
        count++;
    }
    buffer[count] = '\0';

    /*输出*/
        printf("%s\n",buffer);
    printf("Have %d of %c\n",zi_count,'%');

    return 0;
}

这是超级简化的...
不过不能精确的控制每个单词

#include <stdio.h>
#include <conio.h>

unsigned int Section(const char* s, char delimiter);
void Pause(void);

void main(void)
{
    const char delimiter = '%';
    printf_s("\nthe %c count is %u\n", delimiter, Section("abc%fdfd%  dfro9 043cv %dfdldsfd", delimiter));

    Pause();
}

unsigned int Section(const char* s, char delimiter)
{
    unsigned int count = 0;

    while (*s != '\0')
    {
        if (*s != delimiter)
        {
            putchar(*s);
        }
        else
        {
            ++count;
            putchar('\n');
        }
        ++s;
    }
    putchar('\n');

    return count;
}

void Pause(void)
{
    printf_s("Press any key to return...");
    _getch();
}