Let's look at the effect chart first:
Effect chart
Draw a picture line frame first
Figure 1
Put the other lines on another layer, then close them, cut the remaining lines, and convert them into a surface field.
Figure 2
Drawing lines and
Look at the effect chart first!
First with the line L, arc arcs and other commands roughly draw the following figure shape!
Pedit edited into multiple lines (when rotated into an entity, it must be a closed line)! The command prompt is as follows:
We often have this in the process of drawing: irregular hole distribution or similar entities (especially when more), if the use of conventional linear tagging, easy to appear cluttered, affecting the reading (as shown in Figure 1), the use of
1 first draw the vertical auxiliary line in the CAD, take this intersection as the midline, make the circle.
2) Coloring, set the user coordinates as follows
3 Solid planer, select XY plane, after the x points, select B to keep both sides
There are two ways to quickly get the fill patterns and proportions available in a CAD drawing:
The first: The Inheritance Properties button found in the Fill dialog box allows you to directly read the parameters of the original fill in the diagram
Many friends do not know what DWG is in the format of the file, how to open the DWG file, where the Pepsi network to provide you with a series of DWG file Viewer including CAD, all perfectly supported to open DWG files, also includes some DWG file converters, you can convert DWG files into a variety of
File type, C language file read/write, File Buffer, file opening method, file operation functionFile types include stream files and device files. device files such as VGA interfaces, serial ports, USB ports, network ports, and serial ports are abstracted into files by the op
Many software, such as EditPlus, after generating some type of file, it will automatically generate its backup files, if you do not want to back up the file, you can open the menu bar tool-> parameters to select the-> file, the "Save automatically create backup file" before the check off on the line, Other software suc
SpringMVC single file upload, multi-File Upload, file list display, file download, springmvc File Upload
Original works of Lin bingwen Evankaka. Reprinted please indicate the source http://blog.csdn.net/evankaka
This document describes in detail the single
about implementation and introduction in the program notes.
File Submission page: (can be submitted separately to doaction.php, doaction1.php, doaction2.php for testing)
upload.php
File Upload
doaction.php
doaction1.php
doaction2.php
$maxSize) {exit (' upload file too large '); } echo $fileInfo [' type ']; Exit $ext = Strtolow
# Region: determines whether a file exists. If the file does not exist, it is created. Otherwise, the read value is displayed in the form.
PublicFormmain ()
{
Initializecomponent ();
// Readfile (application. startuppath + "// alarmset.txt ");
// Determine whether a file exists
// System. Io. directoryinfo info = new system. Io. directoryinfo (applica
Enter a filename and path to create the file, save the input from the keyboard to the file, and finally output the path to the file, the file name, and the contents of the file to the screen.
#include
Import java.io.*;Class Sortchar{Private String str;Private Char arraylist[];Private BufferedReader BR; Character StreamPrivate File F; Read the fileSortchar (String s){F=new File (s);}public void Start (){if (Inputdata () ==-1){Return}To bubble sort a character arraySortchar ();Turns the sorted array into a string and writes the string to the B.txt file through t
Note: I just wrote an article titled ihttphandler (2): anti-leech! My resources can only be downloaded by my users. The URL is http://blog.csdn.net/zhoufoxcn/archive/2008/01/11/2018.5.aspx. It is estimated that many friends are not familiar with the MIME types corresponding to files with different suffixes (in fact, I cannot remember so many ), therefore, I have written a table of MIME types corresponding to some common file suffixes, And I will prese
So far, the input and output we have discussed is the object of the system-specified standard device (the input device is the keyboard and the output device is the monitor). In real-world applications, disk files are often used as objects. The data is read from the disk file and the data is output to the disk file. Disk is the external memory of the computer, it can retain information for a long time, can r
FILE descriptor and FILE, FILE descriptor FILE1. file descriptor (important)
In Linux, everything can be viewed as a file, which can be divided into common files, directory files, link files, and device files. File descriptor is a
1. Store the data txt file. 1.1 Examples:# 1 存储 txt 文件data = ‘‘‘我是一个txt文件‘‘‘# 存储的文件名:file=‘test.txt‘# 文件打开方式:mode=‘a‘# 编码格式:encoding=‘UTF-8‘with open(file=‘test.txt‘,mode=‘a‘,encoding=‘UTF-8‘) as f : f.write(data) # 保存内容 f.close() # 关闭文件1.2 Different modes of open files:
Mode
Description
R
R to o
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.