//删除单词
void DETL() {
	int nu = 0,i=0;
	system("cls");
	VIEW();
	if (fnum == 0) {
			printf("\t\t****************************\n");
			printf("\t\t*  请输入要删除的单词      *\n");
			printf("\t\t****************************\n");
			int m1=-1,qu=0,x=0;
			char a[100];
			scanf("%s", a);
			struct w_word ap[100];
			FILE *fp = fopen("wordd.txt", "r");
			while (!feof(fp)) {
				if (fread(&ap[i], sizeof(struct w_word), 1, fp) != NULL) {
					i++;
				}
			}
			fclose(fp);
			if (i == 0) {
				printf("\t\t*    无单词    *");
				system("pause");
				return;
			}
			for (int m = 0; m < i; m++) {
				if (strcmp(ap[m].word_,a) == 0) {
					m1 = m;
					break;
				}
			}
			if (m1 == -1) {
				printf("\t\t*       无对应单词      *\n");
				system("pause");
				qu = 1;

			}
			else {
				for (int s = m1; s < i; s++) {
					ap[s] = ap[s + 1];
				}
				i--;
				if ((fp = fopen("wordd.txt", "w")) == NULL) {
					return;
				}
				for (int k = 0; k < i; k++) {
					if (fwrite(&ap[k], sizeof(struct w_word), 1, fp) != 1) {
						printf("*      删除失败      *\n");
						system("pause");
						x = 1;
					}
				}
				fclose(fp);
				//printf("*      删除成功      *");
			}
			if (x == 0&&qu==0) {
				printf("\t*      删除成功        *\n");
				printf("\t*       回车进入下一步  *\n");
				system("pause");
			}
			return;

	}
	return;
}