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current cursor to the beginning of the row where the cursor is locatedY $ copy from current position to end of rowYfa indicates copying the content from the current cursor to the first a character after the cursorYG copies the data from the row to the last row.P copies the temporary data row on the top of the cursor.: N1, N2 Co N3 copy content from line N1 to line N2 to line N3 + 1 [next line of line N3]: N1, N2 M N3 move the content from line N1 to line N2 to line N3~ Change the case sensitivi

Vim edit the general operation of the file1. Vim #在命令行中输入vim, enter the VIM editor2. I #按一下i键, the lower end of the display--insert--#插入命令, in Vim may have any character function3. ESC #退出i (Insert) command for other commands to use4.: r filename #读入一个文件内容 and written to the current editor5.: w newfilename #将该编辑器中的内容写入到一个新文件中6.: w #在编辑的过程中保存文件, equivalent to ctrl+s in Word7.:! Command temporarily leaves VI to command column mode to perform command dis

1.Vim#在命令行中输入vim, enter the VIM editor2.I#按一下i键, lower display--insert--#插入命令, any character may be useful in vim3.Esc#退出i (insert) command for other commands to use4.: R filename#读入一个文件内容, and writes to the current editor5.: w NewFileName#将该编辑器中的内容写入到一个新文件中6.: W#在编辑的过程中保存文件, equivalent to ctrl+s in Word7.:! CommandTemporarily leave VI to command column mode to perform command display results! For example:!ls#在编辑过程中执行shell命令ls8.: SH#进入shell命令行, after

= [' Call ', ' Me ', ' Ishmael ', '. '] Sent1 Len (sent1) Lexical_diversity (SENT1) Print (SENT2) Print (SENT3) #连接 Sent4+sent1 #追加 Sent1.append ("some") Print (SENT1) #索引 TEXT4[173] Text4.index (' Awaken ') #切片 Print (text5[16715:16735]) Print (text6[1600:1625]) #索引从0开始, be aware Sent = [' word1 ', ' word2 ', ' word3 ', ' word4 ', ' word5 ', ' Word6 ', ' Word7 ', ' Word8 ', ' word9 ', ' word10 '] Print (Sent[0]) Print

Tags: Setup assembly--Start the Execute Machine BSP Introduction command1. Start the Debug programGDB debugging objects, such as the GDB app2. Running the programRun or this abbreviation is R3. Set BreakpointsThere are several different ways1) Break Line2) Break File:line3) Break Function:offset4. Continue execution after interruptionC5. Display assembly codeDisassemble or abbreviated to DisasCombining different parameters to achieve different display effects, several classic usagesDisas/m Func1

= "" Bottom margin5) Left: margin6) Right: margin equal to the length and width of Word7) hidden= "True" hides entire Web page8) 9) good One) nbsp;--spacesColor= "#CC6699"Size= "+5"Face= "Times New Roman, times, serif"---modified in Second Class1, processing the text label1-6 represents the font size1(with Sequence table ) )2. Hyperlink:target= "Properties" > title 1 target--Open Modenew/black--Opening a new pageparent--Replace the previous pageself-

First, IntroductionOO Programming---Object oriented programming, short: OOP, is a programming idea. OOP treats objects as a basic unit of a program, an object that contains functions for data and manipulating data. The appearance of object-oriented has greatly improved the efficiency of programming, and the reusability of programming is increased.Python's Key object-oriented terminology:1. Polymorphism (polymorphism): A function has multiple representations2. Inherited (inheritance) subkeys inhe

value"Function Description: Sends a real number of a Gemini (32) in sine, cosine, tangent to out (32)Data type: input/output is realExample:LD I0.0EUMOVR 3.14159,AC0/R 180.0,AC0*r 10.0,AC0COS AC0,AC1MOVR 3.14159,AC2/R 180.0,AC2MOVR 120.0,AC3*r AC2,AC3SIN AC3,AC3+r AC1,AC3//sin120°+cos10°6. Increase/Decrease DirectiveAlso known as self-increment/self-reduction directives. Self-add 1 or minus 1 for unsigned or signed integers6-1: Add directive (Increment)Data type: Byte, INT, DINTinc* out6-2: Min

backgroud and bgcolor are bacgroud covered bgcolor.To modify the background color:Modify the background map: File path Backward Search Folder, with .../.../.2) Text: set The color of the Chinese boby3) topmargin= "" "Top margin, text distance from the top of the page,""the number of write spacing 4) bottommargin= "" Bottom margin5) Left: margin6)right: Margin equal to The length and width of word7) hidden= "True" hides entire Web page8) Line ch

)----Select all F elements in the E elementC descendant selector (E F)----Select all F elements inside the E element------------------------------------------------------------------------| CSS2 Properties |--------A text1 Horizontal alignmentText-align:left/right/centerYou can also have the horizontal alignment of IMG, input, etc.2 Vertical alignmentVertical-align:top (top)/bottom (bottom)/middle (center)More for Table3 Setting the row heightline-height:50px/10%;If you have text centered vertic

CSS writing is need to accumulate, and a good CSS writing habits for our future growth is very advantageous, I will usually see or meet the occasional update to here, from time to turn, but to improve.If you crossing also have views and suggestions, comments, I will also update in, thank you!1, CSS selectors are histograms from right to left, for example #nav Li, find all the Li first, and then to filter the parent element, to determine the matching parent element ... So the performance is actua

words.6.2 Show n rows before matching rows-BGrammar:Grep-b "string" FILENAMEThe following example shows the matching row and the previous 2 rows of data$ grep-b 2 "single WORD" Demo_textExample to show the difference between word and word* 192.168.1.1-single WORD6.3 Show n rows before and after matching rows-C Displays the previous n rows, followed by the n rows of data.$ grep-c 2 "Example" Demo_textWord-word consists of a sequence of letters, digits and underscores.Example to show the differe

get it?L = [1,3.,5,7,9= sorted (l)print(l)>>>[0, 1, 3.0, 5, 7, 9]View CodeFour, what is the difference between a generator and an iterator?The essence of the generator is the iterator, and the generator is essentially the keyword of yield in the function.The difference between yield and return is that the function encounters yield and does not end, just hang, but return is over.Yield has a send () method, which can be assigned a value of yieldFive, write a Fibonacci algorithm:def fib (n):

gives me the online collection of the more complete command ↓ 1.VimEnter VIM in the command line and enter the VIM editor2.IClick the i key, the lower end shows –insert–Insert command, in Vim, any character may be useful3.EscExit I (insert) command to use other commands4.: R filenameReads the contents of a file and writes it to the current editor5.: w NewFileNameWrites the contents of the editor to a new file6.: WSave the file in the editing process, which is equivalent to ctrl+s in

Windows 8 is about to be officially released, followed by the long-awaited Microsoft Office 2013. In conjunction with Windows 8 and future mobile and touch devices, the new office uses more than previous design and has made more product improvements. After a trial of Office 2013 preview, the new office is an unprecedented surprise for its avant-garde design and excellent user experience. Personally think there is reason to believe that the future win 8 tablet will definitely be better because of