Education

Workspace Work AreaEthernet EthernetPTS Analog TerminalGraphical interface:Ctrl+alt+f1Character Interface:Ctrl+alt+f2-f6Switch Virtual Terminal: (Native operation)# CHVT 1-6Close the graphical interface and operate under the pure character interface:

Dictionaries are unordered.Create a dictionary Nsmutabledictionary *dic=[nsmutabledictionary Dictionary]; nsmutabledictionary *dic = [ nsmutabledictionary dictionarywithobject : @ " Zhang San " forkey @ "Name" "; Dictionary

2.storyboard Custom Cell1) Create the Tableviewcontroller first, create the class that inherits the UITableViewCell2) Associate the cell of the page in Main.storyboard with the custom cell class, fill in the class name of the custom cell with the

Today is September 9. The weather is cloudy. It's time for class again. What Mr. Liu is talking about today is the control. Several new controls have been introduced and how they are used. Are some of the more commonly used. For example, Uitextfield,

Today I've talked about the use of some controls1. LabelFunction: An interface view that displays textual information.2. ButtonAction: A control that can respond to a user's click action3, TextFieldFunction: A single-line text box that receives

Today we mainly learned about forward calls and reverse invocations, where reverse calls are more difficult to understand.The process of reversing a value (reverse invocation):1, declare a weak property of type A in class B, the variable is called

Three methods commonly used in manual memory management (MRC)Retain: Causes memory Count +1Release: Causes memory Count -1Copy: Copies a new object and the data of the previous object may be consistent but not the same object memory count is

Day10Lectures ten days, today mainly about the iOS calculator program writing, which contains the new code is quite a lot of, and need to seriously think, organizational logic of the place also many. Summarize some of the code that needs to be

First, memory management notes 1, OC Memory management, management stack memory, the primary management object is heap memory.2, Memory count: There is pointing to it, its count is added one. Or that someone quoted it, counting plus one.3.

Stack area: Contains the basic data type and object address, no need to consider the memory release problemHeap area: Freed by programmer assignment. If the programmer does not release, the memory will never be released, causing a memory leak. In

The main content of today's study:Unboxing://Convert the base data type to an object type (object before plus *), take the number out of the array, and turn the struct into the object type (the struct is not added *).Application life cycle:Run for

1, the protocol uses the situation: A class has an instance method, this instance method to the object passed over, restricts it must implement a specific method, and the passed object type is not limited.2. FormatProtocol name: @protocol protocol

 Test instructions: Give a natural number sequence, according to the sum of all the digits of each number as the first keyword, the size of each number as the second keyword in ascending order, the number of positions unchanged.Train of thought:

time flies, I come old this boy education study fast 3 months this three months in the old boy teacher's lead, and taught me to learn a lot, from the beginning of what do not understand, to now have a new understanding of Linux to understand this is

I have made a mistake, I hope my children do not do again! I had a painful experience, I hope my child will not experience!1. What you do is what your child learns, and take action to educate your child.2. Never be angry at home, forever!3. Train

Do not hate a personBecause, life is composed of timeHate, it takes a lot of time on this personPeople who have supported and helped youYou haven't spent any time with them.Waste time on irrelevant peopleIs it silly to do this? Why? Do not

1. Flame SealIn the fireworks, I generally like to use people with high growth rates. These figures do not have a high level of appearance, that is to say, experience is low, but because of the high growth rate, it is generally easy to cultivate

Every time I chat with people in my hometown, It is a heartache to mention the child of a relative who has dropped out of school. Yesterday, my mother told me that sigu's second son had come to Beijing to work. If I had something to ask for, I would

In the higher education class, the teacher did not instill knowledge into us, but learned the knowledge in the form of discussion. He will not teach you how to do it by hand. Instead, after you have learned it, everyone will sit together and start

MVP Technical Support Visual c ++ MVP, who once studied at the University of Chicago and the University of Dublin in Europe, has changed his understanding of this study abroad. Compared with foreign countries, it is not only the difference in