1. First add the Hosts filevim/etc/hosts10.0.110.56 msjtvl-dsjc-h0110.0.110.57 msjtvl-dsjc-h0310.0.110.58 msjtvl-dsjc-h0510.0.110.60 msjtvl-dsjc-h0210.0.110.61 msjtvl-dsjc-h042. Several machines do mutual trustSetup passphraseless sshnow Check that you can ssh to the localhost without a passphrase: $ ssh localhostif you cannot SSH to localhost without a passphrase, execute the following commands: $ ssh-keygen-t dsa-p '-F ~/.ssh/id_dsa
$ Cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_k
the IP address LengthIf Len (IP) Valid_IP = False'Display error messageExit FunctionEnd If
I = H01Dot_count = H00For I = 1 To Len (IP)If Mid (IP, I, H01) = "." Then'Add the vertex value.'And the value of text_octet is set to null.Dot_count = dot_count + H01Test_octet = ""If I = Len (IP) Then'IP verification fails if the point is at the end.Valid_IP = False'Display error messageExit FunctionEnd IfElseTest_octet = test_octet Mid (IP, I,
following is an example of a memory file.
// Comments are allowed !)
CC // This is first address I. e 8' H00
AA // This is second address I. e 8 'h01
@ 55 // jump to new address 8 'h55
5A // This is address 8 'h55
69 // This is address 8 'h56
Pay attention to the following points for memory files:
A. annotation mark // allowed in the memory file;
B. Use the @ symbol to jump to the new target address. If the @ symbol is not used, the address increase
/passwd to/tmp directory, hold timestamp19) View the usage space of the/tmp/directory20) set Linux to shut down after one minute21) Set Linux to restart after one minute22) Enter the/home directory and use PWD to display the current directory23) Create directory under/Under Worker, create directory under worker host01,host02 directory under host01 h01,h0224) Delete the H01 directory under HOST01, and if the
A piece of code from OpenGL game programming, based on the position of the current point of the coordinate system (the height must be computed, not by obtaining a coordinate point) to get the interpolation height, is a good idea:/** get the interpolation height of the ground current point */Float getaveheight (float x,float z){float Camerax, Cameraz;Camerax = X/m_ncellwidth;Cameraz = Z/m_ncellwidth;/** Calculate elevation coordinates (Col0, Row0), (Col1, Row1) */int col0 = int (Camerax);int row0
Environment: MYSQL+SQLYOG+J2SE+JDBCStore text with longtext typeStoring pictures with blob type1, first build the tableCREATE TABLE t_t (ID int (+) not NULL auto_increment,Longtext Longtext,Picture Blob,PRIMARY KEY (' id ')) ;' Longtext ' longtext,//text txt' Picture ' blob,//picDatabase is t_test, table is t_t2. JDBC operation, open eclipse for J2SEString jdbcname= "Com.mysql.jdbc.Driver"; String dburl= "Jdbc:mysql://localhost:3306/t_test"; String dbusername= "root"; String dbpassword= "123456"
.ConstUInt64 M4 =0x0f0f0f0f0f0f0f0f;//binary:4 Zeros, 4 ones ...ConstUInt64 m8 =0x00ff00ff00ff00ff;//binary:8 Zeros, 8 ones ...ConstUInt64 M16 =0x0000ffff0000ffff;//binary:16 zeros, ones ...ConstUInt64 M32 =0x00000000ffffffff;//binary:32 zeros, ones ...ConstUInt64 HFF =0xffffffffffffffff;//Binary:all onesConstUInt64 h01 =0x0101010101010101;//The sum of the 0,1,2,3 to the power of ...//This was a naive implementation, shown for comparison,//Understand
initialization state is high, that is, off state. 4.2 Timing Design? Input clock 50MHZ, to ensure that the LED light can be stabilized for 1 seconds. Defines the counter as 50000000/1=50000000. A 26-bit wide div_cnt counter is defined here. When the input clock rising edge is detected, div_cnt==26 ' d49_999999, the LED register is shifted to the right once and the counter is zeroed. 8 LED initialization status is 8 ' h01. When Led_o_r==8 ' h00, reset
JavaScript-test jQuery and javascriptjqueryTest the JavaScript Framework library-jQuery
Reference jQuery
To test the JavaScript library, you must reference it on the webpage.
To reference a library, use the
JQuery description
The main jQuery function is the $ () function (jQuery function ). If you pass a DOM object to this function, it returns the jQuery object with the jQuery function added to it.
JQuery allows you to use the CSS selector to select elements.
In JavaScript, you can assign
CircuitElectricityThe driver circuit of the controller is ir12001 (see figure 5 ). Ir12001/ir2132 is a high-voltage, high-speed actuator and IGBT driver. Ir12001 can be the sameControl the switching and shutdown of six power tubes. The output ports h01, h02, and H03 are used to control the pilot and shutdown of the upper half-bridge vq1, vq5, and vq5 in the three-phase full-bridge drive circuit respectively.L0l, L02, and l03 respectively control the
, it returns the jQuery object with the jQuery function added to it.JQuery allows you to use the CSS selector to select elements.In JavaScript, you can assign a function to handle window loading events:
JavaScript:
JQuery:
function myFunction(){$("#h01").html("Hello jQuery");}$(document).ready(myFunction);
In the last line of the code above, the html dom document Object is passed to jQuery: $ (document ).
When you pass a DOM object to jQuery, jQue
the table (list), which is depicted in Figure 2, and the 9 profiles found are connected by H_prev and H_next. There is no vertical connection, no use of V_prev and V_next.
Cv_retr_comp detects all the contours and organizes them into two-tier structures, the first layer is the outer contour boundary, and the second is the boundary of the hole. From Figure 2 You can see the boundaries of the 5 outlines, where 3 contain holes. The outermost boundary C0 has two holes, and all the holes between the
you to select elements through the CSS selector .In JavaScript, you can assign a function to handle window load events:JavaScript mode:JQuery Method:function MyFunction () {$ ("#h01"). HTML ("Hello jQuery");} $ (document). Ready (myFunction); On the last line of the code above, the HTML DOM Document object is passed to JQuery: $. When you pass a DOM object to jquery, jquery returns the JQuery object wrapped in an HTML DOM object. The jquery
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