对于缓冲区问题楼主可看《C Primer Plus》第8章节讲了很多缓冲区知识
第14章 如下代码就和楼主的代码有些类似
Listing 14.2. The manybook.c Program
/* manybook.c -- multiple book inventory */
#include <stdio.h>
#define MAXTITL 40
#define MAXAUTL 40
#define MAXBKS 100 /* maximum number of books */
struct book { /* set up book template */
char title[MAXTITL];
char author[MAXAUTL];
float value;
};
int main(void)
{
struct book library[MAXBKS]; /* array of book structures */
int count = 0;
int index;
printf("Please enter the book title.\n");
printf("Press [enter] at the start of a line to stop.\n");
while (count < MAXBKS && gets(library[count].title) != NULL
&& library[count].title[0] != '\0')
{
printf("Now enter the author.\n");
gets(library[count].author);
printf("Now enter the value.\n");
scanf("%f", &library[count++].value);
while (getchar() != '\n')
continue; /* clear input line */
if (count < MAXBKS)
printf("Enter the next title.\n");
}
if (count > 0)
{
printf("Here is the list of your books:\n");
for (index = 0; index < count; index++)
printf("%s by %s: $%.2f\n", library[index].title,
library[index].author, library[index].value);
}
else
printf("No books? Too bad.\n");
return 0;
}
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本帖最后由 hjx1120 于 2015-9-20 21:20 编辑 ]