宏控制打印信息输出
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#include<stdio.h>#define DEBUG 0//如果DEBUG=0 关闭所有打印信息//如果DEBUG=1 打开所有打印信息#if DEBUG#define debug(arg) printf(arg)#define debug_1(arg,one) printf(arg,one)#define debug_2(arg,one,two) printf(arg,one,two)#define debug_3(arg,one,two,three) printf(arg,one,two,three)#define debug_4(arg,one,two,three,four) printf(arg,one,two,three,four)#define debug_5(arg,one,two,three,four,five) printf(arg,one,two,three,four,five)#else#define debug(arg)#define debug_1(arg,one)#define debug_2(arg,one,two)#define debug_3(arg,one,two,three)#define debug_4(arg,one,two,three,four)#define debug_5(arg,one,two,three,four,five)#endifint main(){debug("hello\n");debug("bye bye\n");}
