Use the Turtle Graphics library in Python to draw a seven-segment digital tube that shows the current time
Code# coding:utf-8# Draw seven segment digital tube, display current time import Timeimport turtle as tt# draw interval def drawgap (): Tt.penup () TT.FD (5) # Draw single segment digital tube def DRA Wline (Draw): Drawgap () if (draw): Tt.pendown () E
http://blog.csdn.net/wang_xuehen/article/details/7895301
First of all, the application of their own background to do a description, I do a system in the power supply part needs two battery switching power supply, so to do an electronic switch, this switch should be as low as possible electricity consumption. General use of electronic switches can be selected transistor, but the transistor voltage drop and leakage current is not acceptable to the system. So it is necessary to use the MoS
CRT Tube Focusing performance: CRT projector to the input of the source signal decomposition to the R (Red), G (green), B (blue) Three CRT tube on the screen, under high pressure, light-emitting, after the signal amplification and convergence, the large screen display color image. CRT tube Focusing is divided into three kinds of electrostatic focusing, magnetic f
is implemented in the process.2. Threads(1) thread two basic propertiesAn independent unit that can have resources, a basic unit that can be independently dispatched and assigned;(2) thread-to-process relationshipThreads act as the basic unit of dispatch and allocation, and processes act as units for allocating resources independently.A thread is an entity in a process.Threads have only a few resources to run: program counters, a set of registers, stacks.Threads can share all the resources owne
Author: knife
Affected Versions: 2.4.4Official Address: www.discuz.net
Vulnerability Type: SQL Injection
Plug-in: video tube less than 1.85 (only 1.85 tested)
Vulnerability file: reportvideopopup. php
Vid variable Filtering does not strictly produce SQL Injection
If (isset ($ _ GET [vid]) $ vid = $ _ GET [vid]; // you know
If (isset ($ _ POST [postreport]) $ op = postreport; if (isset ($ _ POST [reportclose]) $ op = reportclose; if (isset (
); } else { //Probably Initialize members with default values for a new instance } //...}public void Onrestoreinstancestate (Bundle savedinstancestate) { //All call the superclass so it can restore the VI EW hierarchy super.onrestoreinstancestate (savedinstancestate); Restore State members from saved instance Mcurrentscore = Savedinstancestate.getint (state_score); Mcurrentlevel = Savedinstancestate.getint (state_level);}Destroy Activityondestroy () is the last
Town Field Poem:Cheng listens to the Tathagata language, the world name and benefit of Dayton. Be willing to do the Tibetan apostles, the broad show is by Sanfu mention.I would like to do what I learned, to achieve a conscience blog. May all the Yimeimei, reproduce the wisdom of the body.——————————————————————————————————————————CodeDef Test (): var=5 Print (Var) #局部变量var =10print (Var) #全局变量Test () print (VAR) #全局变量 # Because global variables and local variables are stored in two di
shortest time to find the best things. So have to say, Google Dafa good, haha haha (thank laod.cn really is FQ artifact, when a tap water ~). I think so for my own choice:1. More money ... Yes, it's more money, it's so superficial.2. Technical barriers are high, but the alternative is not high.3. The importance of working hours is less frightening, and the slow technology can actually lead to a more robust and rapid advance, with very clear guidelines for future career planning.4. The more you
Digital display 00~59 Button 1 each time you press the display value plus one, button 2 each press the display value minus one, button 3 function zero, button 4 start or stop timer 0#include #define UCHAR unsigned char#define UINT unsigned intSbit key1=p3^4;Sbit key2=p3^5;Sbit key3=p3^6;Sbit key4=p3^7;Sbit dula=p2^6;Sbit wela=p2^7;Uchar Code table[]={0X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6F,0X77,0X7C,0x39,0x5e,0x79,0x71};void delayms (UINT);Uchar Numt0,num;void display (Uchar Numdis){Uc
users to use the computer to provide a good operating environment of a system software.2, the role of the operating system(1) Improve the efficiency of computer system through resource management;(2) To improve the human-machine interface, to provide users with a friendly working environment;3, the operating system featuresConcurrency: Two or more two running programs are executed simultaneously within the same interval.Sharing: Refers to the resources in the operating system can be used by mul
character device array(4) Create a struct class using the Class_create macro(5) Create a device file using the Device_create function2. Uninstalling the LED-driven device filesCall three methods in turn:Void Device_destroy (struct class *class,dev_t devt)Void Class_destroy (struct class *cls)Void unregister_chrdev_region (dev_t from,unsigned count)3. Setting the register and initializing the LED driver4. Control LED(1) control led via string(2) control led via I/o commandModule parameters for 5
1. Master the basic working circuit of ZigBee Wireless module.2, the above chip with the emulator connection needs 5 wires, power, ground, reset, P2_1, p2_2.Output configuration: A, the first to make the corresponding IO port in the normal IO port mode, non-on-chip peripheral mode, B, so that the normal IO port in the output state, non-input state, C, directly to the corresponding IO port assignment, the corresponding value is output.The input or output status of all IO ports is determined by P0
smaller, generally 100 ω to dozens of ω between. This indicates that the FET has been triggered to pass. At this time, the black table pen to the S pole, the red table pen to the D-pole, you will find that there is a numerical display. This shows that the FET is intact. If the results are inconsistent with the above two methods, then the FET is bad. In general, D-pole and S-pole breakdown are more common. Using the "diode" of the digital multimeter, you will hear the sound of the buzzer. The ab
Recently I plan to build a hardware touchpad control system, so I started to learn hardware.
A week of downtime, come on!AT89S52
1/* = ======================================2 Project name: digital tube running light3 OPERATOR: Rain4 creation date: 2011-10-305. Change description:6 program description:7 (1) CPU model: AT89S528 (2) clock frequency: 129 (3) implementation functions:10 (4) Program Overview:11 =============================================
the code is wrong (school facilities are wrong). Then this thread is bound to fall into chaos. 4, for physical education this process. Threads (physical activity) are unknown, and only when the school is allocated at the beginning of the semester can you determine who will take the first course. EnhancementA pipe defines a data structure and a set of operations that can be run for a concurrent process. This set of operations can synchronize processes and change the data in the pipe process d
teacher) to control, once the code is wrong (school facilities are wrong), then this thread will fall into chaos. 4, for physical education This process, the thread (sports activities) is unknown, only in the school when the allocation of a good time to determine who first to carry out what course. EnhancementThe process defines a data structure and a set of operations that can be performed for concurrent processes, which can synchronize processes and change the data threads in a pipe to de
chain today? What is the high quality of the chain? Just look at the so-called outside the chain of the real role! We first answer a question: what is the outside chain to do, why to give a page to do outside the chain? Look at Google and Baidu's optimization guide said outside the chain is equivalent to the page of a vote, the more the chain more votes, the higher the weight, this is true! But in essence we do outside the chain mainly to let more people understand us, from more ways to know us
#include
Well, that's the code. The actual circuit may have 74h or something. However, it is only one person who wants to record his doubts about why it is B0 rather than 0b.
Assume that the digital tube is a common anode digital tube, and the number "3" should be displayed ".
Digital tube principle
A B C D E F G DP in alphabetical order
Corresponding Level 0 0
Dynamic planning, in fact, is similar to the division of the law, the basic idea is to divide the complex problem into a number of simple sub-problems, and then to solve. The difference is that the sub-problems concerned by the division and treatment do not overlap each other, while the sub-problems of dynamic planning are overlapping. For example, in the fast sort, we divide the data into two parts, the two parts of the recursive idea of the sorting of the whole problem into sub-problem sub-arr
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