*#if 1#pragma import(__use_no_semihosting)struct __FILE{ int

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*#if 1
#pragma import(__use_no_semihosting)
struct __FILE
{
int handle;
};
FILE __stdout;
_sys_exit( int x )
{
x = x;
}
#endif*/
比如说#if
#endif

$*#if 1#pragma import(__use_no_semihosting)struct __FILE{ int$

是关于I/O的重定义
再问：能不能解释的详细一点啊，比如说#if是什么意识
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*#if 1#pragma import(__use_no_semihosting)struct __FILE{ int #pragma pack(1) and #pragma pack(push, Struct Struct st {int x;int *y;}*pt; Int a[]={1,2},b[]={3,4} struct complex { int real,unreal ;} datal={1,8},data2; 刚学的C语言struct stint i;int j;int *q;main(){struct m[]={{10,1}, struct st{int x;int*y;}*p;inta[]={1,2},b[]={3,4};struct st c typedef struct node { int data; struct node *next; }Node,*Li typedef struct node { int data; struct node *next; } NODE,*n #include main() { struct node{int n;struct node *nest;} *p; typedef int ElemType; struct Lnode{ ElemType data; struct Ln struct ord {int x,y;}dt[2]={1,2,3, struct { int x; char *y; }tab[2]={{1,"ab"},{2,"cd"}},*p=tab;