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#include <stdio.h> #include <stdlib.h> struct addressList { char nickname[30]; int age; int sex; char relation[30]; }; int main(void) { FILE *fPtr; int i = 0; struct addressList blankEntry1 = {"John", 15, 1, "friend"}; struct addressList blankEntry2 = {"Mary", 13, 0, "teacher"}; struct addressList blankEntry3 = {"Tony", 12, 1, "family"}; struct addressList blankEntry4 = {"Park", 14, 1, "friend"}; struct addressList blankEntry5 = {"Lily", 10, 0, "friend"}; fPtr = fopen("E:\\aa.txt", "wb+"); if (!fPtr) { printf("Failed to open file...\n"); exit(1); } for(i=0;i<10000;i++){ fwrite(&blankEntry1, sizeof(struct addressList), 1, fPtr); fwrite(&blankEntry2, sizeof(struct addressList), 1, fPtr); fwrite(&blankEntry3, sizeof(struct addressList), 1, fPtr); fwrite(&blankEntry4, sizeof(struct addressList), 1, fPtr); fwrite(&blankEntry5, sizeof(struct addressList), 1, fPtr); } fclose(fPtr); return 0; }
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