1-9.c
/*多个空格只输出一个*/
#include<stdio.h>
int main(void)
{
char sucker, spoon, chopstick;
sucker = spoon = chopstick = '\0';
while((sucker=getchar())!=EOF){
if(chopstick!=sucker) putchar(sucker);
if(sucker==' ') chopstick = sucker;
else
chopstick = '\0';
}
return 0;
}
//e:\program files\codeblocks\mingw\bin\..\lib\gcc\mingw32\4.8.1\..\..\..\libmingw32.a(main.o):main.c:(.text.startup+0xa7)||undefined reference to `WinMain@16'|