|
马上注册,结交更多好友,享用更多功能^_^
您需要 登录 才可以下载或查看,没有账号?立即注册
x
本帖最后由 青蛙星 于 2015-5-31 09:29 编辑
跟大家分享一下有趣的东西,记得别哭。hello world的N种写法。
第一个
- #define _________ }
- #define ________ putchar
- #define _______ int main
- #define _(a) ________(a);
- #define ______ _______(){
- #define __ ______ _(0x48)_(0x65)_(0x6C)_(0x6C)
- #define ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F)
- #define ____ _(0x72)_(0x6C)_(0x64)_(0x21)
- #define _____ __ ___ ____ _________
- #include<stdio.h>
- _____
复制代码
第二个
- #include<stdio.h>
- int main(){
- int x=0,y[14],*z=y;*(z++)=0x48;*(z++)=y[x++]+0x1D;
- *(z++)=y[x++]+0x07;*(z++)=y[x++]+0x00;*(z++)=y[x++]+0x03;
- *(z++)=y[x++]-0x43;*(z++)=y[x++]-0x0C;*(z++)=y[x++]+0x57;
- *(z++)=y[x++]-0x08;*(z++)=y[x++]+0x03;*(z++)=y[x++]-0x06;
- *(z++)=y[x++]-0x08;*(z++)=y[x++]-0x43;*(z++)=y[x]-0x21;
- x=*(--z);while(y[x]!=NULL)putchar(y[x++]);
- }
复制代码
第五个
- #include<stdio.h>
- int main(){int i,n[]={(((1<<1)<<(1<<1)<<(1<<
- 1)<<(1<<(1>>1)))+((1<<1)<<(1<<1))), (((1
- <<1)<<(1<<1)<<(1<<1)<<(1<<1))-((1<<1)<<(
- 1<<1)<<(1<<1))+((1<<1)<<(1<<(1>>1)))+ (1
- <<(1>>1))),(((1<<1)<<(1<<1)<<(1<<1)<< (1
- <<1))-((1<<1)<<(1<<1)<<(1<<(1>>1)))- ((1
- <<1)<<(1<<(1>>1)))),(((1<<1)<<(1<<1)<<(1
- <<1)<<(1<<1))-((1<<1)<<(1<<1)<<(1<<(1>>1
- )))-((1<<1)<<(1<<(1>>1)))),(((1<<1)<< (1
- <<1)<<(1<<1)<<(1<<1))-((1<<1)<<(1<<1)<<(
- 1<<(1>>1)))-(1<<(1>>1))),(((1<<1)<<(1<<1
- )<<(1<<1))+((1<<1)<<(1<<1)<<(1<<(1>>1)))
- -((1<<1)<<(1<<(1>>1)))),((1<<1)<< (1<<1)
- <<(1<<1)),(((1<<1)<<(1<<1)<<(1<<1)<<(1<<
- 1))-((1<<1)<<(1<<1))-(1<<(1>>1))),(((1<<
- 1)<<(1<<1)<<(1<<1)<<(1<<1))-((1<<1)<< (1
- <<1)<<(1<<(1>>1)))-(1<<(1>>1))), (((1<<1
- )<<(1<<1)<<(1<<1)<<(1<<1))- ((1<<1)<< (1
- <<1)<<(1<<(1>>1)))+(1<<1)), (((1<<1)<< (
- 1<<1)<<(1<<1)<< (1<<1))-((1<<1)<< (1<<1)
- <<(1<<(1>>1)))-((1<<1) <<(1<< (1>>1)))),
- (((1<<1)<< (1<<1)<<(1<<1)<< (1<<1))- ((1
- <<1)<<(1<<1)<<(1<<1))+((1<<1)<< (1<<(1>>
- 1)))), (((1<<1)<<(1<<1) <<(1<<1))+(1<<(1
- >>1))),(((1<<1)<<(1<<1))+((1<<1)<< (1<<(
- 1>>1))) + (1<< (1>>1)))}; for(i=(1>>1);i
- <(((1<<1) <<(1<<1))+((1 <<1)<< (1<<(1>>1
- ))) + (1<<1)); i++) printf("%c",n[i]); }
复制代码
第六个
- #include <stdio.h>
- #define _(_) putchar(_);
- int main(void){int i = 0;_(
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++i)_(++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++i)_(++++++++++++++
- i)_(--++i)_(++++++i)_(------
- ----------------------------
- ----------------------------
- ----------------------------
- ----------------------------
- ----------------i)_(--------
- ----------------i)_(++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++i)
- _(----------------i)_(++++++
- i)_(------------i)_(--------
- --------i)_(----------------
- ----------------------------
- ----------------------------
- ----------------------------
- ----------------------------
- ------i)_(------------------
- ----------------------------
- i)return i; }
复制代码
第三个 #include<stdio.h>
#define __(a) goto a;
#define ___(a) putchar(a);
#define _(a,b) ___(a) __(b);
int main()
{ _:__(t)a:_('r',g)b:_('$',p)
c:_('l',f)d:_(' ',s)e:_('a',s)
f:_('o',q)g:_('l',h)h:_('d',n)
i:_('e',w)j:_('e',x)k:_('\n',z)
l:_('H',l)m:_('X',i)n:_('!',k)
o:_('z',q)p:_('q',b)q:_(',',d)
r:_('i',l)s:_('w',v)t:_('H',j)
u:_('a',a)v:_('o',a)w:_(')',k)
x:_('l',c)y:_('\t',g)z:___(0x0)}
第四个
- #include <stdio.h>
- int n[]={0x48,
- 0x65,0x6C,0x6C,
- 0x6F,0x2C,0x20,
- 0x77,0x6F,0x72,
- 0x6C,0x64,0x21,
- 0x0A,0x00},*m=n;
- int main(int* n){putchar
- (*m)!='\0'?main
- (m++):0;}
复制代码
在VS2010下实测有效。
转自:http://coolshell.cn/articles/914.html
-----------------------------------------------------------------------------------------------------------------------------------------------------
一位网友的讲解
第一个:利用了宏的层层替代,剥离开来就是一个标准的 main(){putchar(‘H’);……putchar(‘!’);}
第二个:利用数组和指针,先对赋值Y[0]=0x48=’H’,Y[1]=Y[0]+0x1D=0x65=’e’依次通过偏移量对数组赋值,组后逐个输出。
第三个:利用goto语言跳转输出。从 __(t)开始,即goto t;t:_(‘H’,j) 即(putchar(‘H’, goto (j)) 依次跳转输出。
第四个:利用函数副作用和条件运算符判断输出。n是数组首地址。m是指针变量,每次自增,最后函数返回数组首地址。
第五个:利用移位(结核性:L-R)对数组赋值:如第一个值((1<<1)<<(1<<1)<<(1<<1)<<(1<>1)))+((1<<1)<<(1<<1))),即((2<<2<<2<<1) + (2<<2))即(8<<2<<1 + 8)= 64<<1 + 8 = 64 + 8 = 72 = 0x48 ='H'.
|
评分
-
查看全部评分
|