#include <stdio.h>
#include <stdlib.h>
struct Person{
char codeChacter[20];
char fullName[30];
int Iq, Eq;
};
int main(){
struct Person cha1, cha2;
printf("Enter detail of character 1: \n");
printf("code Character: ");
gets(cha1.codeChacter);
fflush(stdin);
printf("Full Name: ");
gets(cha1.fullName);
fflush(stdin);
printf("Enter Iq and Eq: ");
scanf("%d%d", &cha1.Iq, &cha1.Eq);
printf("Enter detail of character 2: \n");
printf("code Character: ");
gets(cha2.codeChacter);
fflush(stdin);
printf("Full Name: ");
gets(cha2.fullName);
fflush(stdin);
printf("Enter Iq and Eq: ");
scanf("%d%d", &cha2.Iq, &cha2.Eq);
printf("\n---------------------Detail------------------\n");
printf("%s\t%s\t%d\t%d\n", cha1.codeChacter, cha1.fullName, cha1.Iq, cha1.Eq);
printf("%s\t%s\t%d\t%d\n", cha2.codeChacter, cha2.fullName, cha2.Iq, cha2.Eq);
return 0;
}
这是我的第一个结构计划。当我运行这个应用程序时,它工作,但它不适合我的想法。你能帮助我改变失败吗?非常感谢!
答案 0 :(得分:0)
scanf("%d%d", (pointers to read));
无法从输入流中删除换行符,然后gets
会读取换行符并且无法正常工作&#34;期望&#34;
fflush(stdin);
,这是未定义的行为。gets()
。可能的解决方法:
#include <stdio.h>
#include <stdlib.h>
struct Person{
char codeChacter[20];
char fullName[30];
int Iq, Eq;
};
char* read_line(char *out, size_t bufsize){
char *lf;
if (fgets(out, bufsize, stdin) == NULL) return NULL;
/* remove the newline character because fgets store it while gets donesn't */
for (lf = out; *lf != '\0'; lf++){
if (*lf == '\n'){
*lf = '\0';
break;
}
}
return out;
}
int main(void){
char read_buf[1024];
struct Person cha1, cha2;
printf("Enter detail of character 1: \n");
printf("code Character: ");
read_line(cha1.codeChacter, sizeof(cha1.codeChacter));
printf("Full Name: ");
read_line(cha1.fullName, sizeof(cha1.fullName));
printf("Enter Iq and Eq: ");
read_line(read_buf, sizeof(read_buf));
sscanf(read_buf, "%d%d", &cha1.Iq, &cha1.Eq);
printf("Enter detail of character 2: \n");
printf("code Character: ");
read_line(cha2.codeChacter, sizeof(cha2.codeChacter));
printf("Full Name: ");
read_line(cha2.fullName, sizeof(cha2.fullName));
printf("Enter Iq and Eq: ");
read_line(read_buf, sizeof(read_buf));
sscanf(read_buf, "%d%d", &cha2.Iq, &cha2.Eq);
printf("\n---------------------Detail------------------\n");
printf("%s\t%s\t%d\t%d\n", cha1.codeChacter, cha1.fullName, cha1.Iq, cha1.Eq);
printf("%s\t%s\t%d\t%d\n", cha2.codeChacter, cha2.fullName, cha2.Iq, cha2.Eq);
return 0;
}
使用此代码,您必须在同一行输入Iq和Eq,并且在输入Iq和Eq之前不能插入任何空白行,而使用scanf
的程序不会要求这一点。