建设网站的时候,建官网个人网站,搜索引擎优化包括哪些内容,做网站服务器用谁的满意答案#include#include#define uchar unsigned charuchar key;int i0;char b[4]{0,0,0,0};//输入的密码放这里和初始的比较来判断是否密码正确void keyscan()//扫描按键是否按下{uchar temp;P30xfe;//扫描第一行tempP3;temptemp0xf0;if(temp!0xf0)//判断按键是否按下{d…满意答案#include#include#define uchar unsigned charuchar key;int i0;char b[4]{0,0,0,0};//输入的密码放这里和初始的比较来判断是否密码正确void keyscan()//扫描按键是否按下{uchar temp;P30xfe;//扫描第一行tempP3;temptemp0xf0;if(temp!0xf0)//判断按键是否按下{delayms(10);//去抖动tempP3;temptemp0xf0;if(temp!0xf0)//确认按键按下{tempP3;switch(temp){case 0xee:key0;break;case 0xde:key1;break;case 0xbe:key2;break;case 0x7e:key3;break;}while(temp!0xf0)//判断按键是否松开{tempP3;temptemp0xf0;}b[i]key;i;if(i3)i0;}}P30xfd;//扫描第二行tempP3;temptemp0xf0;if(temp!0xf0){delayms(10);tempP3;temptemp0xf0;if(temp!0xf0){tempP3;switch(temp){case 0xed:key4;break;case 0xdd:key5;break;case 0xbd:key6;break;case 0x7d:key7;break;}while(temp!0xf0){tempP3;temptemp0xf0;}b[i]key;i;if(i3)i0;}}P30xfb;//扫描第三行tempP3;temptemp0xf0;if(temp!0xf0){delayms(10);tempP3;temptemp0xf0;if(temp!0xf0){tempP3;switch(temp){case 0xeb:key8 ;break;case 0xdb:key9 ;break;case 0xbb:keyA;break;case 0x7b:keyB;break;}while(temp!0xf0){tempP3;temptemp0xf0;}b[i]key;i;if(i3)i0;}}P30xf7;//扫描第四行tempP3;temptemp0xf0;if(temp!0xf0){delayms(10);tempP3;temptemp0xf0;if(temp!0xf0){tempP3;switch(temp){case 0xe7:keyC;break;case 0xd7:keyD;break;case 0xb7:keyE;break;case 0x77:keyF;break;}while(temp!0xf0){tempP3;temptemp0xf0;}b[i]key;i;if(i3)i0;}}}main(){char a[4]{3,5,A,C}; //这个做初始密码while(1)//无限循环保证了b 0-3 四个数有值{keyscan();if(a[0]b[0]a[1]b[1]a[2]b[2]a[3]b[3]){//这里写密码正确程序要怎么处理}}}00分享举报
