C/code/字符查找.c

#include <stdio.h>
#include <string.h>

int main() {
	int i;
    char str[100], ch;
    int count[100], flag = 0, len;

    fgets(str, sizeof(str), stdin);
    scanf("%c", &ch);

    len = strlen(str);

    int index = 0;
    for (i = 0; i < len; ++i) {
        if (str[i] == ch) {
            count[index++] = i;
            flag = 1;
        }
    }
    count[index] = '\0';

    if (flag) {
        printf("%d\n", index);
        for (i = 0; i < index; ++i) {
            printf("%d", count[i]);
            if (i < index - 1) {
                printf("#");
            }
        }
        printf("#\n");
    } else {
        printf("No match\n");
    }

    return 0;
}