c - 如何重置 while 循环？

Question

这是我正在处理的一些代码的摘录。只是想知道我将如何重置嵌套循环？当第一个循环再次运行时，它保留在文件末尾。

while(fscanf(fp2,"%s", wordcheck)!=EOF)//Reads word from text file into array//
    {

        for (i=0; wordcheck[i]; i++)
        {
            wordcheck[i] = tolower(wordcheck[i]);//makes all characters lower case//
        }

        printf("%s", wordcheck);

        while(fscanf(fp1,"%s", worddict))
        {   
            if(strcmp(wordcheck, worddict)==0)//compare strings//
            {
            printf("This word: %s is in the dictionary\n", wordcheck);
            dictcount++;
            break;
            }

            else
            {
            dictcount++;
            }

            if(worddict == NULL)
            {
            printf("Your word: %s is not in the dictionary\n", wordcheck);
            }
        }
    }

Answer 1

使用fseek :

fseek(fp2, 0, SEEK_SET);

.. 或者更简单地说，rewind :

rewind(fp2);