Question

16.若有以下程序段:int a=1,b=2,c; c=a/b*a; 则执行后,c中的值是

Answer 1

按顺序 从左向右计算。
由于a b都是整型，所以结果会取整。
c=a/b*a
=1/2*1
=0*1
=0
所以c值为0.

Answer 2

int cds(const char *p)
{
char path[PATH_SIZE];
char *start;
char *end;
int res;
int n= 0;

memset(path,'\0',PATH_SIZE); // must init ,ohtrway there is a wrong result with @

start = strchr(p,' ');
end = strchr(p,'\n');
if(!start || !end)
{
printf("can't support this format \n");
return 1;
}