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将代码补充完整。01 #include 02 #include 0304 int main()05 {06 FILE *fp;07 char ch;08 int counter1 = 0, counter2 = 0;09 if ((fp = fopen("file.c", "r")) == NULL)10 {11 printf("file open error!\n");12 exit(0);13 }14 while (!)15 {16 ch = fgetc(fp);17 if (ch == '{')18 ;19 if (ch == '}')20 ;21 }22 fclose(fp);23 if ()24 printf("OK!\n");25 else26 printf("ERROR!\n");27 return 0;28 }

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