Linux下的C语言编程——计算子串的次数

输入一个字符串，计算字符串子串出现的次数。

#include <stdio.h>#include <string.h>int count(char *str,char *str1){int i;int j;int len;i = 0;j = 0;len = 0;while(str[i] != '\0'){if(str[i] != str1[j]){i++;}else{while(j < strlen(str1)){if(str[i] = str1[j]){j++;i++;}else{break;}}if(j = strlen(str1)){len++;j = 0;}else{j = 0;}}}return len;}int main(){char str[30];char str1[20];int m;printf("input the string!\n");scanf("%s",str);printf("input the small string!\n");scanf("%s",str1);m = count(str,str1);printf("the number of string is %d\n",m);    return 0;}