C51学习书

				#include  //7．                   I/O并行口直接驱动LED显示
				unsigned char code table[]={0x3f,0x06,0x5b,0x4f,0x66, 
				                            0x6d,0x7d,0x07,0x7f,0x6f}; 
				unsigned char dispcount; 
				  
				void delay02s(void) 
				{ 
				  unsigned char i,j,k; 
				  for(i=20;i>0;i--) 
				  for(j=20;j>0;j--) 
				  for(k=248;k>0;k--); 
				} 
				  
				void main(void) 
				{ 
				  while(1) 
				    { 
				      for(dispcount=0;dispcount				        { 
				          P0=table[dispcount]; 
				          delay02s(); 
				        } 
				    } 
				}