Question

代码出现这个是啥意思

应该怎么改呢
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
char *swtgrade(int *score)
{
char g[10];
switch(*score/10)
{
case 1:
case 2:
case 3:
case 4:
case 5:
strcpy(&g[10],"不及格");
case 6:
strcpy(&g[10],"及格");
case 7:
strcpy(&g[10],"中等");
case 8:
strcpy(&g[10],"良好");
case 9:
case 10:
strcpy(&g[10],"优秀");
}
return &g[10];
}
int main()
{
int x,score;
char i;
x=1;
while(x<=6)
{
printf("成绩：");
scanf("%d",&score);
printf("等级：%s",i=*swtgrade(&score));
x++;
}
}

Answer 1

#include<stdio.h>
#include<stdlib.h>
#include<string.h>

char *swtgrade(int score)
{
	static char g[10] = "";
	switch (score / 10)
	{
	case 1:
	case 2:
	case 3:
	case 4:
	case 5:
		strcpy(g, "不及格");
		break;
	case 6:
		strcpy(g, "及格");
		break;
	case 7:
		strcpy(g, "中等");
		break;
	case 8:
		strcpy(g, "良好");
		break;
	case 9:
	case 10:
		strcpy(g, "优秀");
		break;
	}
	return g;
}
int main()
{
	int x, score;
	char *i;
	x = 1;
	while (x <= 6)
	{
		printf("成绩：");
		scanf_s("%d", &score);
		i = swtgrade(score);
		printf("等级：%s\n",i);
		x++;
	}
}

附带一个网站：函数返回值

Answer 2

你代码中有个符号用的不对，建议检查一下变量g附近的运算符

追问

应该怎么改呢