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MindMap Gallery MacTK class motor design review

MacTK class motor design review

Regarding the mind map of the design review of TK motors, the design review of MacTK motors is a process of comprehensively evaluating the performance, reliability, cost and other requirements of the motor.

Edited at 2023-11-09 14:54:57

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MacTK class motor design review

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Outline

TEKNOLOGI YANG MENGUBAH KEHIDUPAN MANUSIA
- 1
Kautsarani Rizkia
Mechanical Design Process
- 481
- 13
- 1
Thanongchai Thongyos
The structure of a pumps production company
- 26
Nesma Hassan
Engineering Graphics
- 14
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Mechanical Design
- 17
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Mechanical-Interchangeability and Technical Measurement Chapter 4 Mind Map
- 9
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Mechanical-Interchangeability and Technical Measurement Chapter 3 Mind Map
- 15
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Geometric tolerance testing
- 14
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The most common types of 3D printing technologies at present---Personal information summary notes
- 8
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gear mechanism
Gavinnblake

Mac

0420

Objective-C

day01

OC basic grammar

#import directive

Instructions to introduce library functions

Yes #include enhanced version

Use precompilation directives to prevent repeated inclusion of header files

#ifndef #define

#endif

Using #import, you can prevent repeated inclusion of header files even without precompilation instructions.

Like other precompiled directives, such as the #define macro definition, which replaces a string, this import copies the code into the file.

The same file, no matter how many times it is included with import, will only be treated once.

If the #include directive is used alone, it may cause repeated inclusion. Precompilation commands must be used to prevent it.

Introducing library functions

#import <stdio.h>

Sharp quotes refer to system files

File search order

Compiler Folder -> System Folder -> Search failed

#import "aaa.h"

Double quotes quote user files

File search order

Current folder -> Compiler folder -> System folder -> Search failed

The concept of framework

Encapsulate pre-prepared functional modules in classes. The collection of these classes is called a framework.

Similar to the function library in C language

Foundation framework

Provides the most basic functions of OC

autoreleasepool framework

autorelease pool

OC Completion Learning Route

OC Overview

Object-oriented features in OC

Object-oriented in OC

Memory management

Categories, protocols, extensions, and delegation models in OC

Blocks

Introduction to Foundation framework

File operations

copy

Object archive

KVC/KVO

Use of NSLog function

NSLog is an enhanced version of printf

simple string

NSString *str =@"Hello hello";

// str is the variable name, and the variable name stores the string address

NSLog(@"str ===== %p",str);

What is printed is the address

NSLog(@"str ===== %@ ",str);

The actual string printed

In addition to printing with variables above, you can also print constants directly like this

NSLog(@"What I want to print is %@",@"Hello Hello")

NS prefix

There is no concept of namespace. Class names in OC must be globally unique.

Similar functions in different frameworks may lead to duplication of class names. ObjectiveC stipulates that class names must have a prefix.

The use of comments and @ symbols in OC

How to use @

@"This is OC"

Convert C language string to OC string

identifier

Most identifiers in OC begin with @

Comments in OC

Same as C language

Functions to access OC source files and C source files

1. Create C file

2. Define a function in the C file

3. Declaration in C header file

extern void testCShow();

4. Reference the import above header file in OC code

5. You can start using it in OC code

Differentiated learning of OC and C

Data type comparison

C language

basic type

integer

character

real type

structure

array

Structure

Subtopic 3

enumerate

pointer

empty typevoid

typedef

Data types in OC

Contains the above C language types

newly added

Boolean type BOOL

BLOCK type

code block data type

pointer data type

class class

ID type

dynamic object type

special type

SEL/nil

Variable definitions

Variable definitions in C language can be used directly in OC

The flow control statements are exactly the same

for

while

do while

switch

New exception capture in OC

@try...@catch...@finally

@try { //Possible error code NSLog(@"try"); } @catch (NSException *exception) { //In case of error, the remedial code NSLog(@"catch"); } @finally { // NSLog(@"finally") is executed regardless of error or not; }

object-oriented

Four main characteristics

abstraction

Encapsulation

Polymorphism

inheritance

UI basics

day01

introduction to apple

IOS framework

UIKit

user interface

QuartzCore

animation effects

CoreGraphics

2D drawing

MapKit

Built-in map

Don't reinvent the wheel

AVFoundation

audio video

object-oriented

emulator

Be familiar with common operations in the simulator

Create iOS project

Main.storyBoard

LaunchScreen.storyBoard

startup screen

Used to build user interface

There is an AutoLayout concept

Used to maintain normal display of the program in various versions

How to resize storyBoard

Press the view circle button above

Click AttributeInspector to select size

For example, in iPhone6 it is 4.7inch

Calculator interface

Use AI's keyboardType to adjust the pop-up keyboard in Text

Only the numeric keyboard pops up

The relationship between ViewController and View

The code is written in viewController

The function is to manage the view

There is a view in ViewController

It can be seen from the storyBoard

It can also be seen from the header file code of ViewController

The two classes View and ViewController themselves are not related.

View is used to manage components that can be seen together

Inherited from UIView and UIViewController respectively

There is an object of type UIView in UIViewController

In addition, the application entry is in main.m in supportFile.

Connect button to method

Define methods in advance

- (IBAction)doSomething { NSLog(@"have fun");}

connection method

method 1

Press the control key on the keyboard and drag the button to the ViewController. A method will pop up. Select the connection.

Method 2

Right-click the button and select touchupinside

dosomething function pointing to header h file

Fix keyboard issues

Sometimes the keyboard does not appear on the simulator

Click on the Hardware selection on the menu

Problems with method connection

1. If a method is deleted in the code, the corresponding connection must also be deleted.

When deleting method code, confirm whether there is a corresponding connection in use

Otherwise a runtime error occurs

2. If a method only needs to be triggered by clicking a button, it does not need to be called elsewhere.

Just need to implement it in the .m file

No need to declare in .h file

Control wiring

The goal is to connect the text in Text to the variables of the code

For controls (properties) that only need to be used in ViewController, we generally declare them in class extensions

All UI controls use weak, because UI controls need to be wired, and the IBOutlet label needs to be added.

Then use dragging to connect

In addition, there is no need to implement defined properties, but directly drag the control to the class extension by pressing the control line. An information box will pop up and after selection, an attribute will be automatically generated.

Recycle keyboard values

NSLog(@"%@",self.filed1.text);

Display the text in the text box in the console

Take the value from Text and convert it to int

int number1 = [self.filed1.text intValue];

Convert the calculation result int value to String and display it in Label

self.sumlable.text = [NSString stringWithFormat:@"%d",sum];

Use %p to print the address

extern meaning

0421

Stanford IOS Video

Overview

premise

Learned object-oriented

iOS is a completely object-oriented system

IOS structure

CocoaTouch

MultiTouch

WebView

The part where Cameraなど interacts with users

Media

Audio

PDF/JPEG

Videoなど

CoreServices

Collection

CoreLocation

FIleAccess

SQLite

NetServicesなど

CoreOS

OSX Kernel

FileSystem

Socketsなど

Swift and OC

Essentially the two languages are very similar

MVC design pattern