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The previous article introduced the cascade operation of Hibernate persistence object, this article introduces the cascade operation when reading.Or use the previous example, a questionnaire has a number of questions, but each problem can only

Title: Enter a string to print out all the permutations of the characters in the string.For example, if you enter the string ABC, all strings that can be arranged by the character A,b,c are printed: ABC,ABC,BAC,BCA,CAB,CBAWe can look at the entire

A loud noise in the sky, the road long shiny debut, Flying leaves, dust, here should not panic, with the concept of reading variables to enhance the gas field.1) The declaration of a variable, which should be declared before using a variable.

If you are a Web development engineer, then you must use PHP many applications that have been developed Web . But do you know how to use PHP Quick Build a command line application (tool)? Below I'll show you how to PHP build a command-line

This is a creation in Article, where the information may have evolved or changed. Listen to the complex types in the Go language in addition to arrays, slices, there is a map, say map estimate everyone is not unfamiliar, because in Java, C + + and

When programming, you often need to check a series of conditions and decide what measures to take accordingly. In Python, the if statement enables us to check the current state of the program and take corresponding measures accordingly. 5.1 The

If you want to create a page that is automatically generated by Baidu map coordinates, you must generate several coordinate points within a certain latitude and longitude. The distance between points cannot be less than a certain degree. How to

1. function Syntax:How the function is declared:Function name (parameter 1, parameter 2 ...) {function body;}Function call: Function name (parameter 1, parameter 2 ...);The return value is not necessarily specified within the function.If you need to

In the process of developing the app, we need to revise and optimize our code repeatedly, especially when the program bug, need to quickly find out the cause of the error, make changes to ensure the correct execution of the program.Breakpoint

Transferred from: http://blog.csdn.net/lyq8479/article/details/6401093This article focuses on the theoretical knowledge of Android application signatures, including: What is a signature, why to sign an application, how to sign an application, and so

The escape character is literally understood to translate the meaning of the subsequent character.Example: Commonly used escape charactersHex and octal: \DDD:DDD is 3 contiguous 8 binary data So what he meant was to escape the characters in the back,

Java print positive pyramid, inverted pyramid and "Water Shadow" pyramid-------- original article, to reprint, please indicate the source little Boy .Nothing to do, think of their own beginner Java when the classic is to print out some interesting

For Python beginners, willing to strongly recommend from the "Headfirst Python" began to read, this book is really done in layman's terms, headfirst series, itself is also a guarantee of quality. This book is ready for download in the article

Examine the @log adorners in the previous section:def log (f): def fn (x): Print ' ' + F.__name__'() ... ' return f (x) return fnIt is found that for decorated functions, the log-printed statement is immutable (except for the

Non-parametric @log decorators:def log (f): def fn (x): print ' call ' + f.__name__ + ' () ... ' return f (x) return fnIt is found that for decorated functions, the log-printed statement is immutable (except for the function name)

1. Learning processSet up folder C under \ \ and put the compiler tcc.exe, connector Tlink.exe, related files c0s.obj, cs.lib, Emu.lib, maths.lib into the folder.To build a simple C-language compiler environment, you need TC2.0, C0s.obj, Emu.lib,

1: Preparation for driver development(1) The Development Board of the normal running Linux system. The zimage of Linux in the Development Board must be compiled by itself and not compiled by others.(2) kernel source tree, in fact, is a configuration

Shell Script Way php php how so Red recently PHP (Personal hypertext preprocessor) seems to have been the most widely used in the last two years Linux/unix the Web processing language, its convenient, powerful features and O Pensource's features

The registers of the ADC are read,int Adc_read (void){int result;#if adstart==0result = ADC. adcdat0&0x3ff;while (!) ( Adc. adccon& (0x1{}#elif adstart==1while (!) ( Adc. adccon& (0x1{}result = ADC. adcdat0&0x3ff;#endifreturn

Simple understanding of computer communicationWrite in front:When the computer just appears, can only perform some arithmetic processing in the machine, want to transfer data from one computer to another computer, need to transfer through external