新人C语言编程问题求解！！！！！！！！

Question

新人一个不要太高级

Answer 1

 #include <stdio.h>

#include <string.h>

#define STRING_SIZE 80

void delete_substr(const char *str, const char *substr, char *resultstr) {

int i, j;

unsigned long substrlen, resultstrlen;

char *p;

substrlen = strlen(substr);

strcpy(resultstr, str);

resultstrlen = strlen(resultstr);

p = strstr(resultstr, substr);

while(p != NULL) {

        for(i = 0; i < substrlen; i++) {

            for(j = (p - resultstr) + substrlen - i; j < resultstrlen; j++){

                resultstr[j - substrlen] = resultstr[j];

            }
               resultstrlen=resultstrlen-substrlen;

               resultstr[resultstrlen] = '\0';
        }

        p = strstr(resultstr, substr);

    }

}

int main(void)

{

char str[STRING_SIZE + 1], substr[STRING_SIZE + 1], resultstr[STRING_SIZE + 1];

scanf("%s", str);

scanf("%s", substr);

delete_substr(str, substr, resultstr);

printf("%s\n", resultstr);

return 0;

}