number .
sentence B: This boots number is not small, it is more suitable
How to calculate the similarity of the above two sentences.
The basic idea is that if the two words are more similar in terms, their content should be more similar. Therefore, we can start with the word frequency and calculate their similarity.
The first step, participle .
sentence A: this/boots/number/Big one. That's/number/suitable
: setshortwext (SIZE size SIZE) and CSize CDC: SetViewportExt (size SIZE size) to set the length/width ratio. The system determines the ratio of length to width based on the ratio of length to width set twice. The following code compares the ratio of length to width before and after ing:
OnDraw (CDC * pDC)
{
CRect rpc3 (400,200, 0 );
PDC-> FillSolidRect (rpc3, RGB (0, 0, 255 ));
PDC-> SetMapMode (MM_ANISOTROPIC );
CSize sizeO;
SizeO = pDC-> setjavaswext (5, 5 );
TRACE ("
status indicators
As shown in the figure below, ds0 and ds1 are connected to gpioa8 and gpiod2 respectively, so that the Register operation can be performed to implement the experiment of the streaming lamp.
Void led_init (void){RCC-> apb2enr | = 1 RCC-> apb2enr | = 1 Gpioa-> CRH = 0xfffffff0; // clear pa8Gpioa-> CRH | = 0x00000003; // set pa8 to universal push-pull output modeGpioa-> ODR | = 1 Gpiod-> C
Qt Resource System (how to use small images for icons) --- convert
1. Create a. qrc Resource Description fileFor example, example. qrc:By default, the name used to access resources in an application is prefixed with/in the Resource description :/. For example:/images/cut.png. For other rules, see the QT document the QT resource system.2. Use RCC to compile this fileRCC-binary myresource. qrc-O myresource. RCCIn this way, the compiled resourc
.
Two
All are cone Nat
Of
.In this case, there are six types: A: Fc + FCB: Fc + RCC: Fc + pc d: PC + rc e: PC + pc f: although RC + RC has many situations, it is still very easy to handle due to the characteristics of cone Nat, because for Cone Nat, in the same session, it will bind a pair of ing between [private IP: Port] and [Public IP: Port], so they use the [Public IP: the port] is consistent with the [Public IP: Port] registered on the server. Th
(maximumHclk/8). Under this condition, set the systick verification value to 9000 and set the systick clockIf it is set to 9 MHz, a time base value of 1 ms can be generated, that is, the interruption of 1 ms can be generated by ick.
Step 1: configure the RCC register and systick register
1 /************************************** ************************************* 2 * name: void rcc_configuration (void) 3 * function: the system clock is configured
]
Win under Copy dynamic library to qt installation path
Moc_dir = $ $PWD/temp
Where the product of the MOC is placed
Rcc_dir = $ $PWD/temp
Where the product of RCC is placed
Ui_dir = $ $PWD/temp
Where the products of UIC are placed
objects_dir = Pwd / te mp / TARGET
compiler-generated. O (. obj) file placement
In this way, we put the extended part of
project filesDelete compilation generates junk files: When you need to package the entire project, double-click the file to delete the unwanted files (such as the files under the two folders listings and objects above).② Structure DescriptionWhen we open software engineering directly with Mdk-arm , we can see the structure shown anddivide the "Libraries" of the folderinto three items, such as:Source Code Details①RCC ClockThe function is located under
Do138 {139Temp=systick->CTRL; $} while((temp0x01) ! (temp (1 -)));141Systick->ctrl=0x00;142Systick->val =0x00;143 } 146 voidDelay_ms (U16 NMS)147 { 148U8 repeat=nms/540; MaxU16 remain=nms%540;151 while(repeat) the {153DELAY_XMS (540);154repeat--;155 }156 if(remain) delay_xms (remain);157 } The following ideas are similar, do not introduce these files separately, only in main directly or indirectly call these, and then go back to learn these function
(high-speed peripherals) are: UART1, SPI1, Timer1, ADC1, ADC2, all normal IO ports (PA~PE), and the second function IO port.Registers involved:The RCC register structure, Rcc_typedeff, is defined in the file "Stm32f10x_map.h" as follows:typedef struct{Vu32 CR; HSI,HSE,CSS,PLL and so on to enableVu32 CFGR; Clock source selection and crossover factor setting for PLL, etc.Vu32 CIR; Clear/Enable clock ready interruptVu32 Apb2rstr; APB2 on-line Peripheral
Reset and Clock control (RCC)
resetting The system resets the clock control register to the CSR and the registers in the backup area, and all other registers are reset. (5 ways: Nrst pin, independent, window watchdog, SW reset, low power reset) power Reset, in addition to the registers in the backup area, the other registers are reset. Backup domain reset.
Clock
Clock source five HSI high-speed internal clock, RC oscillator HSE high-speed external
reproduced in http://blog.csdn.net/u010661782/article/details/50281229, thank the original author very detailed guidance learning
Experimental Purpose:
Let the buzzer ring once every second;
Experimental steps:
Experimental Procedure:
[CPP] view plain copy/************************led.c***********************/#include "stm32f4xx.h"//In SysteThe M directory can be found #include "sys.h" void Led_init (void) {Rcc->ahb1enr |= 1
[CPP] view plain copy/*
stm32f103 System Clock Configuration
the understanding of the clock tree determines the frequency multiplier before doingstm32f103 Clock Tree
Assuming the external crystal oscillator 8MHz, now need to configure the system 72MHz, you need to configure the code (external Crystal 8MHz configuration system clock is 72MHz)
/*RCC config*/void rcc_configuration (void) {rcc_deinit ();
Rcc_hseconfig (rcc_hse_on); while (SUCCESS! = Rcc_waitforhsestartup
() stop_time = time. time () print ('run time is % s' % (stop_time-start_time) # comment: there are many functions to implement this function, write N times to change this code, # In the later stage, the maintenance service was forced or opened...
# Another child boots with repeated functions # use a powerful function # Revision 3: import timedef index (): time. sleep (3) print ('Welcome to index page') def wrapper (func): # func = index start_time =
delicate, so that skin elasticity.15. Lu Qing disappearedAfter a fall, you may have a big blue block, but it is ugly and hard to wear a short skirt. What should I do? After you boil the eggs and shell them, roll them over the green ones. Soon it disappears. You can try it.
16. Chalk makes jewelry shineWill your jewelry "grow over time" be eclipsed? Don't worry! Just put a small piece of chalk in the jewelry box to make the jewelry shine. What are you waiting? Try it now!17. Simple treatment of
= contains all files necessary for the Boot Process
/Home = contains each individual user's home directory
/Usr = contains those files that are shared across ss a system by multiple users
/Var = contains those files that are dynamic in nature
/= Contains those files necessary for system management when no other partitions are available
/Tmp = contains temporary files
Swap = contains the paging file for Memory Management
Boot Loader
To add a password directive, do the following:
Decide
partition not protected by EWF, but the hibernate file still saves the partition information before enabling EWF protection. After the restart, the hibernate file is loaded into the memory. At this time, the information in the memory that is not protected by EWF is inconsistent with the content in the actual partition, which may cause potential problems.
Solution: before creating the hibernate file, lock and dismount are not protected by EWF. After the system restarts, the system will automat
drop pink green, Sakura lingering powder white, just out of the pink bone, fresh lemon yellow, such as dream smoke pink, from the water out of the pink ...... That kind of cool powder, is suddenly elegant Rouge pink breath.
The Round-headed shoes are still very red in winter. The Round-headed shoes and bows inject a young fashion into the regular style. It's just that the shoes will be a little thin in winter, so if you are cold, you can also choose boots
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