編寫(xiě)一個(gè)java應(yīng)用程序。用戶從鍵盤(pán)輸入一個(gè)1-9999之間的數(shù)，程序?qū)⑴袛噙@個(gè)數(shù)是幾位數(shù)，并判斷這個(gè)數(shù)是否回文數(shù)。回文數(shù)是指將數(shù)含有的數(shù)字逆序排列后得到的數(shù)和原數(shù)相同，例如12121,4224,6778776等都是回文數(shù)。
1）程序具有判斷用戶的輸入是否為合法整數(shù)的功能。對(duì)非法輸入（例如含有字母）要進(jìn)行處理。
2）要判斷輸入數(shù)的位數(shù)，并輸出相關(guān)信息。
3）要判斷是否回文數(shù)。
二、二戰(zhàn)期間，英國(guó)情報(bào)人員獲取德軍的一機(jī)密電報(bào)，電報(bào)的內(nèi)容為：
bzdz izu sxgzd vs lh ,vpzg woflsh vs vwrh vhlsddlmp glm wrw gzy vsg .gflyz gstfzu bvsg gzsd hdmlp vml lm ,hghzvy wmz hwiry mvvdgvy izd z hzd vivsg ,ltz tmlo tmlO
情報(bào)人員已經(jīng)知道，這段電報(bào)的加密方式為：
1. 首先將字符串的順序顛倒。
2. 字母互換的規(guī)律為：A->Z, B-Y, C-X...X->C, Y->B, Z-A a->z, b->y, c-x...x->c, y->b, z->a.
3. 非字母字符保持不變。
請(qǐng)編程幫助情報(bào)人員破譯這份機(jī)密電報(bào)。給出注釋良好的源程序和程序運(yùn)行后的結(jié)果。
標(biāo)簽：
java
9999
編寫(xiě)
應(yīng)用程序
上傳時(shí)間：
2017-06-02
上傳用戶：dengzb84
實(shí)驗(yàn)源代碼
//Warshall.cpp #include<stdio.h> void warshall(int k,int n) { int i , j, t; int temp[20][20]; for(int a=0;a<k;a++) { printf("請(qǐng)輸入矩陣第%d 行元素:",a); for(int b=0;b<n;b++) { scanf ("%d",&temp[a][b]); } } for(i=0;i<k;i++){ for( j=0;j<k;j++){ if(temp[ j][i]==1) { for(t=0;t<n;t++) { temp[ j][t]=temp[i][t]||temp[ j][t]; } } } } printf("可傳遞閉包關(guān)系矩陣是:\n"); for(i=0;i<k;i++) { for( j=0;j<n;j++) { printf("%d", temp[i][ j]); } printf("\n"); } } void main() { printf("利用 Warshall 算法求二元關(guān)系的可傳遞閉包\n"); void warshall(int,int); int k , n; printf("請(qǐng)輸入矩陣的行數(shù) i: "); scanf("%d",&k);
四川大學(xué)實(shí)驗(yàn)報(bào)告 printf("請(qǐng)輸入矩陣的列數(shù) j: "); scanf("%d",&n); warshall(k,n); }
標(biāo)簽：
warshall
離散
實(shí)驗(yàn)
上傳時(shí)間：
2016-06-27
上傳用戶：梁雪文以
/****************temic*********t5557***********************************/
#include <at892051.h>
#include <string.h>
#include <intrins.h>
#include <stdio.h>
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long
//STC12C2051AD的SFR定義
sfr WDT_CONTR = 0xe1;//stc2051的看門(mén)狗??????
/**********全局常量************/
//寫(xiě)卡的命令
#define write_command0 0//寫(xiě)密碼
#define write_command1 1//寫(xiě)配置字
#define write_command2 2//密碼寫(xiě)數(shù)據(jù)
#define write_command3 3//喚醒
#define write_command4 4//停止命令
#define TRUE 1
#define FALSE 0
#define OK 0
#define ERROR 255
//讀卡的時(shí)間參數(shù)us
#define ts_min 250//270*11.0592/12=249//取近似的整數(shù)
#define ts_max 304//330*11.0592/12=304
#define t1_min 73//90*11.0592/12=83:-10調(diào)整
#define t1_max 156//180*11.0592/12=166
#define t2_min 184//210*11.0592/12=194
#define t2_max 267//300*11.0592/12=276
//***********不采用中斷處理:采用查詢的方法讀卡時(shí)關(guān)所有中斷****************/
sbit p_U2270B_Standby = P3^5;//p_U2270B_Standby PIN=13
sbit p_U2270B_CFE = P3^3;//p_U2270B_CFE PIN=6
sbit p_U2270B_OutPut = P3^7;//p_U2270B_OutPut PIN=2
sbit wtd_sck = P1^7;//SPI總線
sbit wtd_si = P1^3;
sbit wtd_so = P1^2;
sbit iic_data = P1^2;//lcd IIC
sbit iic_clk = P1^7;
sbit led_light = P1^6;//測(cè)試綠燈
sbit led_light1 = P1^5;//測(cè)試紅燈
sbit led_light_ok = P1^1;//讀卡成功標(biāo)志
sbit fengmingqi = P1^5;
/***********全局變量************************************/
uchar data Nkey_a[4] = {0xA0, 0xA1, 0xA2, 0xA3};//初始密碼
//uchar idata card_snr[4]; //配置字
uchar data bankdata[28] = {1,2,3,4,5,6,7,1,2,3,4,5,6,7,1,2,3,4,5,6,7,1,2,3,4,5,6,7}; //存儲(chǔ)卡上用戶數(shù)據(jù)(1-7)7*4=28
uchar data cominceptbuff[6] = {1,2,3,4,5,6};//串口接收數(shù)組ram
uchar command; //第一個(gè)命令
uchar command1;//
//uint temp;
uchar j,i;
uchar myaddr = 8;
//uchar ywqz_count,time_count; //ywqz jishu:
uchar bdata DATA;
sbit BIT0 = DATA^0;
sbit BIT1 = DATA^1;
sbit BIT2 = DATA^2;
sbit BIT3 = DATA^3;
sbit BIT4 = DATA^4;
sbit BIT5 = DATA^5;
sbit BIT6 = DATA^6;
sbit BIT7 = DATA^7;
uchar bdata DATA1;
sbit BIT10 = DATA1^0;
sbit BIT11 = DATA1^1;
sbit BIT12 = DATA1^2;
sbit BIT13 = DATA1^3;
sbit BIT14 = DATA1^4;
sbit BIT15 = DATA1^5;
sbit BIT16 = DATA1^6;
sbit BIT17 = DATA1^7;
bit i_CurrentLevel;//i_CurrentLevel BIT 00H(Saves current level of OutPut pin of U2270B)
bit timer1_end;
bit read_ok = 0;
//緩存定時(shí)值,因用同一個(gè)定時(shí)器
union HLint
{
uint W;
struct
{
uchar H;uchar L;
}
B;
};//union HLint idata a
union HLint data a;
//緩存定時(shí)值,因用同一個(gè)定時(shí)器
union HLint0
{
uint W;
struct
{
uchar H;
uchar L;
}
B;
};//union HLint idata a
union HLint0 data b;
/**********************函數(shù)原型*****************/
//讀寫(xiě)操作
void f_readcard(void);//全部讀出1~7 AOR喚醒
void f_writecard(uchar x);//根據(jù)命令寫(xiě)不同的內(nèi)容和操作
void f_clearpassword(void);//清除密碼
void f_changepassword(void);//修改密碼
//功能子函數(shù)
void write_password(uchar data *data p);//寫(xiě)初始密碼或數(shù)據(jù)
void write_block(uchar x,uchar data *data p);//不能用通用指針
void write_bit(bit x);//寫(xiě)位
/*子函數(shù)區(qū)*****************************************************/
void delay_2(uint x) //延時(shí),時(shí)間x*10us@12mhz,最小20us@12mhz
{
x--;
x--;
while(x)
{
_nop_();
_nop_();
x--;
}
_nop_();//WDT_CONTR=0X3C;不能頻繁的復(fù)位
_nop_();
}
/////////////////////////////////////////////////////////////////////
void initial(void)
{
SCON = 0x50; //串口方式1,允許接收
//SCON =0x50;
//01010000B:10位異步收發(fā),波特率可變,SM2=0不用接收到有效停止位才RI=1,
//REN=1允許接收
TMOD = 0x21; //定時(shí)器1 定時(shí)方式2(8位),定時(shí)器0 定時(shí)方式1(16位)
TCON = 0x40; //設(shè)定時(shí)器1 允許開(kāi)始計(jì)時(shí)(IT1=1)
TH1 = 0xfD; //FB 18.432MHz 9600 波特率
TL1 = 0xfD; //fd 11.0592 9600
IE = 0X90; //EA=ES=1
TR1 = 1; //啟動(dòng)定時(shí)器
WDT_CONTR = 0x3c;//使能看門(mén)狗
p_U2270B_Standby = 0;//單電源
PCON = 0x00;
IP = 0x10;//uart you xian XXXPS PT1 PX1 PT0 PX0
led_light1 = 1;
led_light = 0;
p_U2270B_OutPut = 1;
}
/************************************************/
void f_readcard()//讀卡
{
EA = 0;//全關(guān),防止影響跳變的定時(shí)器計(jì)時(shí)
WDT_CONTR = 0X3C;//喂狗
p_U2270B_CFE = 1;//
delay_2(232); //>2.5ms
/*
// aor 用喚醒功能來(lái)防碰撞
p_U2270B_CFE = 0;
delay_2(18);//start gap>150us
write_bit(1);//10=操作碼讀0頁(yè)
write_bit(0);
write_password(&bankdata[24]);//密碼block7
p_U2270B_CFE =1 ;//
delay_2(516);//編程及確認(rèn)時(shí)間5.6ms
*/
WDT_CONTR = 0X3C;//喂狗
led_light = 0;
b.W = 0;
while(!(read_ok == 1))
{
//while(p_U2270B_OutPut);//等一個(gè)穩(wěn)定的低電平?超時(shí)判斷?
while(!p_U2270B_OutPut);//等待上升沿的到來(lái)同步信號(hào)檢測(cè)1
TR0 = 1;
//deng xia jiang
while(p_U2270B_OutPut);//等待下降沿
TR0 = 0;
a.B.H = TH0;
a.B.L = TL0;
TH0 = TL0 = 0;
TR0 = 1;//定時(shí)器晚啟動(dòng)10個(gè)周期
//同步頭
if((324 < a.W) && (a.W < 353)) ;//檢測(cè)同步信號(hào)1
else
{
TR0 = 0;
TH0 = TL0 = 0;
goto read_error;
}
//等待上升沿
while(!p_U2270B_OutPut);
TR0 = 0;
a.B.H = TH0;
a.B.L = TL0;
TH0 = TL0 = 0;
TR0 = 1;//b.N1<<=8;
if(a.B.L < 195);//0.5p
else
{
TR0 = 0;
TH0 = TL0 = 0;
goto read_error;
}
//讀0~7塊的數(shù)據(jù)
for(j = 0;j < 28;j++)
{
//uchar i;
for(i = 0;i < 16;i++)//8個(gè)位
{
//等待下降沿的到來(lái)
while(p_U2270B_OutPut);
TR0 = 0;
a.B.H = TH0;
a.B.L = TL0;
TH0 = TL0 = 0;
TR0 = 1;
if(t2_max < a.W/*)&&(a.W < t2_max)*/)//1P
{
b.W >>= 2;//先左移再賦值
b.B.L += 0xc0;
i++;
}
else if(t1_min < a.B.L/*)&&(a.B.L < t1_max)*/)//0.5p
{
b.W >>= 1;
b.B.L += 0x80;
}
else
{
TR0 = 0;
TH0 = TL0 = 0;
goto read_error;
}
i++;
while(!p_U2270B_OutPut);//上升
TR0 = 0;
a.B.H = TH0;
a.B.L = TL0;
TH0 = TL0 = 0;
TR0 = 1;
if(t2_min < a.W/*)&&(a.W < t2_max)*/)//1P
{
b.W >>= 2;
i++;
}
else if(t1_min < a.B.L/*a.W)&&(a.B.L < t1_max)*/)//0.5P
//else if(!(a.W==0))
{
b.W >>= 1;
//temp+=0x00;
//led_light1=0;led_light=1;delay_2(40000);
}
else
{
TR0 = 0;
TH0 = TL0 = 0;
goto read_error;
}
i++;
}
//取出奇位
DATA = b.B.L;
BIT13 = BIT7;
BIT12 = BIT5;
BIT11 = BIT3;
BIT10 = BIT1;
DATA = b.B.H;
BIT17 = BIT7;
BIT16 = BIT5;
BIT15 = BIT3;
BIT14 = BIT1;
bankdata[j] = DATA1;
}
read_ok = 1;//讀卡完成了
read_error:
_nop_();
}
}
/***************************************************/
void f_writecard(uchar x)//寫(xiě)卡
{
p_U2270B_CFE = 1;
delay_2(232); //>2.5ms
//psw=0 standard write
if (x == write_command0)//寫(xiě)密碼:初始化密碼
{
uchar i;
uchar data *data p;
p = cominceptbuff;
p_U2270B_CFE = 0;
delay_2(31);//start gap>330us
write_bit(1);//寫(xiě)操作碼1:10
write_bit(0);//寫(xiě)操作碼0
write_bit(0);//寫(xiě)鎖定位0
for(i = 0;i < 35;i++)
{
write_bit(1);//寫(xiě)數(shù)據(jù)位1
}
p_U2270B_CFE = 1;
led_light1 = 0;
led_light = 1;
delay_2(40000);//測(cè)試使用
//write_block(cominceptbuff[4],p);
p_U2270B_CFE = 1;
bankdata[20] = cominceptbuff[0];//密碼存入
bankdata[21] = cominceptbuff[1];
bankdata[22] = cominceptbuff[2];
bankdata[23] = cominceptbuff[3];
}
else if (x == write_command1)//配置卡參數(shù):初始化
{
uchar data *data p;
p = cominceptbuff;
write_bit(1);//寫(xiě)操作碼1:10
write_bit(0);//寫(xiě)操作碼0
write_bit(0);//寫(xiě)鎖定位0
write_block(cominceptbuff[4],p);
p_U2270B_CFE= 1;
}
//psw=1 pssword mode
else if(x == write_command2) //密碼寫(xiě)數(shù)據(jù)
{
uchar data*data p;
p = &bankdata[24];
write_bit(1);//寫(xiě)操作碼1:10
write_bit(0);//寫(xiě)操作碼0
write_password(p);//發(fā)口令
write_bit(0);//寫(xiě)鎖定位0
p = cominceptbuff;
write_block(cominceptbuff[4],p);//寫(xiě)數(shù)據(jù)
}
else if(x == write_command3)//aor //喚醒
{
//cominceptbuff[1]操作碼10 X xxxxxB
uchar data *data p;
p = cominceptbuff;
write_bit(1);//10
write_bit(0);
write_password(p);//密碼
p_U2270B_CFE = 1;//此時(shí)數(shù)據(jù)不停的循環(huán)傳出
}
else //停止操作碼
{
write_bit(1);//11
write_bit(1);
p_U2270B_CFE = 1;
}
p_U2270B_CFE = 1;
delay_2(560);//5.6ms
}
/************************************/
void f_clearpassword()//清除密碼
{
uchar data *data p;
uchar i,x;
p = &bankdata[24];//原密碼
p_U2270B_CFE = 0;
delay_2(18);//start gap>150us
//操作碼10:10xxxxxxB
write_bit(1);
write_bit(0);
for(x = 0;x < 4;x++)//發(fā)原密碼
{
DATA = *(p++);
for(i = 0;i < 8;i++)
{
write_bit(BIT0);
DATA >>= 1;
}
}
write_bit(0);//鎖定位0:0
p = &cominceptbuff[0];
write_block(0x00,p);//寫(xiě)新配置參數(shù):pwd=0
//密碼無(wú)效:即清除密碼
DATA = 0x00;//停止操作碼00000000B
for(i = 0;i < 2;i++)
{
write_bit(BIT7);
DATA <<= 1;
}
p_U2270B_CFE = 1;
delay_2(560);//5.6ms
}
/*********************************/
void f_changepassword()//修改密碼
{
uchar data *data p;
uchar i,x,addr;
addr = 0x07;//block7
p = &Nkey_a[0];//原密碼
DATA = 0x80;//操作碼10:10xxxxxxB
for(i = 0;i < 2;i++)
{
write_bit(BIT7);
DATA <<= 1;
}
for(x = 0;x < 4;x++)//發(fā)原密碼
{
DATA = *(p++);
for(i = 0;i < 8;i++)
{
write_bit(BIT7);
DATA >>= 1;
}
}
write_bit(0);//鎖定位0:0
p = &cominceptbuff[0];
write_block(0x07,p);//寫(xiě)新密碼
p_U2270B_CFE = 1;
bankdata[24] = cominceptbuff[0];//密碼存入
bankdata[25] = cominceptbuff[1];
bankdata[26] = cominceptbuff[2];
bankdata[27] = cominceptbuff[3];
DATA = 0x00;//停止操作碼00000000B
for(i = 0;i < 2;i++)
{
write_bit(BIT7);
DATA <<= 1;
}
p_U2270B_CFE = 1;
delay_2(560);//5.6ms
}
/***************************子函數(shù)***********************************/
void write_bit(bit x)//寫(xiě)一位
{
if(x)
{
p_U2270B_CFE = 1;
delay_2(32);//448*11.0592/120=42延時(shí)448us
p_U2270B_CFE = 0;
delay_2(28);//280*11.0592/120=26寫(xiě)1
}
else
{
p_U2270B_CFE = 1;
delay_2(92);//192*11.0592/120=18
p_U2270B_CFE = 0;
delay_2(28);//280*11.0592/120=26寫(xiě)0
}
}
/*******************寫(xiě)一個(gè)block*******************/
void write_block(uchar addr,uchar data *data p)
{
uchar i,j;
for(i = 0;i < 4;i++)//block0數(shù)據(jù)
{
DATA = *(p++);
for(j = 0;j < 8;j++)
{
write_bit(BIT0);
DATA >>= 1;
}
}
DATA = addr <<= 5;//0地址
for(i = 0;i < 3;i++)
{
write_bit(BIT7);
DATA <<= 1;
}
}
/*************************************************/
void write_password(uchar data *data p)
{
uchar i,j;
for(i = 0;i < 4;i++)//
{
DATA = *(p++);
for(j = 0;j < 8;j++)
{
write_bit(BIT0);
DATA >>= 1;
}
}
}
/*************************************************/
void main()
{
initial();
TI = RI = 0;
ES = 1;
EA = 1;
delay_2(28);
//f_readcard();
while(1)
{
f_readcard(); //讀卡
f_writecard(command1); //寫(xiě)卡
f_clearpassword(); //清除密碼
f_changepassword(); //修改密碼
}
}
標(biāo)簽：
12345
上傳時(shí)間：
2017-10-20
上傳用戶：my_lcs
