switch case statement

1 DOCTYPE HTML>2 HTML>3 Head>4 MetaCharSet= "UTF-8">5 title>title>6 Scripttype= "Text/javascript">7 /*8 * Conditional branching statements are also called Switch statements9 * Syntax:Ten * SWITCH (conditional

1, understand object-oriented programming ideas and object-oriented characteristics;Object: Everything is object, all things are objects, in the program, we can think of classes, interfaces, methods, properties and so on as objects;

First, design Patterns1. Single-case modePurpose: To allow a class to generate only one objectStep: ① the constructor into private② make a static member function object in a class③ limiting conditions in the method Riga //single-case mode

1. Do not copy variables randomlySometimes in order to make the PHP code more neat, some novice PHP (including me) will copy the predefined variables into a shorter name of the variable, in fact, the result is an increase in memory consumption, will

Before we introduced how to implement a simple character device driver and introduced the basic functions provided by the simple Open,close,read,write driver. But a real device driver often provides more advanced functionality than simple read and

This article was reproduced from: http://c.biancheng.net/cpp/view/7006.htmlC Language Chinese network launched remedial classes, including "c language tutorial, C + + tutorial, algorithm/Data Structure Tutorial", all are one-to-one teaching: a

1. Pythone Getting system timeImport Datetimenowtime=datetime.datetime.now (). Strftime ('%y-%m-%d%h:%m:%s ') #现在pastTime = (Datetime.datetime.now () -datetime.timedelta (Hours=1)). Strftime ('%y-%m-%d%h:%m:%s ') #过去一小时时间afterTomorrowTime =

# # Sequential structure-The most basic structure is the execution of a statement in the order from top to bottom.# # Branching structureIf condition:StatementStatement...Elif Condition>:StatementStatement...ElseStatementStatement...-If statement

Type conversions exist in a lot of C + + code, and more are implicit type conversions that are performed behind the scenes you don't see. The conversion between arithmetic types is to prevent the loss of precision. If the left and right operands are

A1 Lexical problemsA 1.1 Letter L is similar to the number 1 in many fontsRule: in long literal constants, always use uppercase L, never lowercase l. Do not use a lone L as the variable name. Puzzle 4A 1.2 Negative hexadecimal literal constants that

Before we introduced how to implement a simple character device driver. The basic functions provided by the simple open,close,read,write and other drivers are introduced. But a real device driver often provides more advanced functionality than

First, condition testThe command test or [can test whether a condition is true, if the test result is real, the exit status of the command is 0, if the test result is false, the exit status of the command is 1 (note the exact opposite of the logical

More cases please follow my blog: home.cnblogs.com/u/python1234Welcome to join thousands of people Exchange resource sharing group: 125240963 It means there's nothing. If the function does not return a value, you can return none

A generation of great God Hoare once said: "Premature optimization is the root of all misfortune." "When I was a rookie, I did not know whether this sentence is correct, but when I became an old bird, I found that this sentence is quite sharp, said

MySQL partition range partition tutorial The tables in the range partition are partitioned in one of the following ways, and each partition contains the rows of those partition expressions whose values are in a given contiguous interval. These

Learning C language, we have learned the process of control statements, that is, the order, conditions, circulation three kinds. The first few flow control statements in the Tiobe programming language leaderboard seem almost identical, so say follow,

Learn to program Java learning Process Control if released, you are welcome to visit through the xuebiancheng8.comThe process Control statements in Java mainly include the choice statement, the Loop statement, where the SELECT statement also

1. Three types of control structuresSequential selection Loops2.math.random () is a pseudo-random double value that is randomly selected for a system that is greater than or equal to 0.0 and less than 1.0The result value of an expression in 3.switch

After the PHP script is named. PHP, the code is placed in the parentheses below: Echo can print information, similar to printf. End Each statement with a semicolon;. PHP supports three kinds of annotation methods:

One, what is a table partition A popular table partition is a large table, divided into several small tables according to the criteria. Mysql5.1 began to support datasheet partitioning. If a user table has more than 6 million records, the table