Option meaning of info. plist, meaning of info. plist
1. application does not run in background (container name: UIApplicationExistsOnSuspend) from the end of iOS4.0, when you apply the program line, press Home terminal, the application does not parse the current line, but hides in the background. Therefore, if you want to download the current program line after you press Home then, check this option.
2. A
This may be used in the shell, including DOS.Null is something called a null bucket, and the benefit of redirecting the output to it is that the file size is not constantly increasing due to too much content in the output. In fact, you think that null is nothing, that is, the output of the command is discarded.1 indicates standard output, 2 indicates standard error output, 2>1 indicates the standard error output is redirected to standard output, so that the normal output and error output of the
The meaning of the forest root domain in the domain tree, and the meaning of the domain forest root domain
Contoso has many IT resources in the company's IT environment, and these IT resources are all in a state of decentralized management, which virtually increases the management cost of contoso, moreover, the management system cannot be implemented in the actual production environment.
So how can we solv
A number of configuration Keywords are defined in the Dbtune.sde file in ArcGIS, and each Keywords is configured with a spatial data storage type, a space data store table space, and a spatial data index storage table space. We can also modify existing keyword content in DBTUNE.SDE files or redefine new keywords to meet our needs. If the most common is that we can define a keyword of their own, the different data stored in different table space, can also be separated from the spatial data and in
Python: The Meaning of self and __init__ + why have self and __init__ backgroundsReply:I wrote some python tutorials that need to be able to seeQuestions from Songshoujiong:What is the meaning of self,__init__ in python?Why do you have to have self,__init these things?Before you explain, let's say a few words.1. So far, although I have written not very little Python code, but there is really not too much co
Meaning of "modal verb +have+ done"1, must has the meaning of done. "Must have+ past participle" means speculation in the past, meaning "must have been, presumably already, must have been ...", only used in affirmative sentences. For example:The streets is wet. It must has rained. The street is wet, it must be raining.He must has been drinking beer. He must have
8th: The meaning of the pursuit of lifeThe author of the Quest for life is a psychiatrist who comes out of a concentration camp, with the energy of a concentration camp, creating a sense of treatment (legotherapy), which is less retrospective and less introspective, and its focus is on the future, In the work and meaning that the patient is going to accomplish in the future. People who know how to live, alm
Thoughts on the meaning of living out of lifeWith the teacher's recommendation, I read Victor Frankel's work, "living out the meaning of life," which describes the pain and suffering that the author has experienced, depicting such a horrible inferno from an impersonal point of view, and Aftermath's author has changed his mind about human life and pioneered the "meaning
Life---meaning. It seems to be a bit esoteric, and indeed quite esoteric, but it is not incomprehensible, because watching Victor Frankel's "living out the meaning of life" is more or less self-conscious. Life, human life down is his meaning, is the so-called inborn I will be useful, can not give up, did not give up there is hope, even if only a little, but give
We all know that Chinese characters are hieroglyphs, but if English is also hieroglyphics, you will think pure nonsense. In fact, the origins of the 26 letters of English do come from hieroglyphs. The 26 letters originally originated from Egyptian hieroglyphics, and the Phoenician alphabet was later modified by the Phoenicians, and the Greeks reformed the Phoenician alphabet to create the Greek alphabet, in which the ancient Romans reformed the Greek alphabet and invented the Latin alphabet, whi
The meaning of life, a very large and broad question, there is no definite answer. Everyone has a different view and understanding, 1000 readers there are 1000 of Hamlet. When you see this book, you must also be thinking about what is the meaning of life, how to live out the meaning of life."Life is meaningless, but you have to define a
After reading the book, "living out the meaning of life," a lot of feeling, "what is the meaning of life?" "This is a very hard question to answer. Many of the sentences in the book are thought provoking, prompting me to think about my life and my own meaning.The author of "Living out the meaning of life" is the famous psychologist Frankel. He was a marvel of the
This book is about the Nazi period, as Jews, Frankel's family were imprisoned in Auschwitz, his parents, wives, brothers, all died in the gas chamber, only he and his sister survived. Frankel not only beyond this purgatory pain, but also his experience and academic integration, to create a sense of treatment, for people to find the meaning of regeneration, but also left the history of human nature the most glorious testimony.After reading this book, f
Main content:
What is least squares
The geometrical meaning of least squares
Orthogonal projection matrix
What is least squares?Suppose we have n-pairs of data on our hands, {(Xi,yi): I=1...N}, in order to explore the relationship between the Y-variable and the X-variable, we want to match it with a polynomial, but how are the coefficients in the polynomial determined? It's definitely not going to work, and the least squares meth
As a hard-pressed engineering student, "Signal and system" + "digital signal processing" is not the past, a variety of headache concepts and mathematical formula: Fourier variation, Laplace change, Z-transform, convolution, cyclic convolution, autocorrelation, cross-correlation, discrete fourier changes, discrete fourier time changes ...Some time ago in the discovery of an interesting example, vividly explain the physical meaning of convolution, and t
CharactersMeaning: For a character, it is usually expressed as literal meaning that the next character is a special character and is not interpreted.For example:/b/matches the character ' B ', by adding a backslash in front of B, which is/b/, the character becomes a special character, indicatingMatch the dividing line of a word.Or:For several characters, the usual description is special, which indicates that the characters immediately followed are not
What is the meaning of life? What is the meaning of living? Perhaps this problem is too deep for us to understand what life means and why we live, but it is a question that needs our constant consideration.The famous psychologist Frankel was a marvel of the 20th century. During the Nazi period, as a Jew, his family was imprisoned in Auschwitz, his parents, his wife, his brother, all died in the gas chamber,
1 Go home on the train, accidentally heard next to the little girl crying while calling family, she said: "Mom, sorry, originally said to make money to go home ..." she curled up in her seat and tried to suppress her cries, "but I did my best, mom, I don't regret it." ” Reminiscent of a previous reading of a log, some people say he has never believed the meaning of hard struggle. But is the meaning of
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