I am writing code for the project today and find that I want to use the switch statement, which is a bit confusing.
The general switch is like this.
Swith (constant)
{
Case 1: Statement; break;
Case 2: Statement; break;
...
Default: break;
}
Each
Switch statements are also the most common logical control statements in object-oriented programming. The Switch statement is used to execute different actions based on multiple different conditions-that is, when the conditions are different,
The switch statement is also the longest common logical control statement in object-oriented programming statements. The Switch statement is used to perform different actions based on multiple different conditions-that is, when the conditions are
$a=5;switch($a){ case 6: echo "\$a is 6"; case 5: echo "\$a is 5"; case 4: echo "\$a is 4";}
As in the above example, my understanding is that each time $ A is compared to the value of the case, the output statement is the same, and the
An if (conditional expression) statement
The IF statement is a conditional judgment statement, and for an expression in parentheses in the IF statement, ECMAScript automatically calls the Boolean () transformation function to convert the result
Select the structure if statement and switch statement.
------- Android training, java training, and hope to communicate with you! ----------
1. Select the structure if statement format and Its Usage
A: if statement format:If (comparison
In practice, the string series in c ++ -- use string in the switch statement (c ++ does C #, and break in the switch is still very powerful)
How many times have you written this as a C ++ programmer out of habit or helplessness:
if (!strcmp(pszValue,
A switch statement consists of a control expression and multiple case labels.The types supported by the switch control expressions are byte, short, char, int, enum (Java 5), String (Java 7).The Switch-case statement can be fully interoperable with
iOS training------My C language notes, look forward to communicating with you! #include /*switch (value) {case value 1: statement 1; Break Case value 2: statement 2; Break Default: Statement 3; Break } */intMain () {//int a = 10;
If the value of an expression equals a constant, then the statement following the constant is executedswitch (expression) {Case constants:Statement....BreakCase constants:Statement....BreakDefaultStatement....Break}Note: 1. The constants following
The "format control" in the scanf function should be followed by the variable address, not the variable name.The accuracy cannot be specified when entering data.scanf ("%7.2f", &a). It's not legal. However, scanf ("%3d%3d", &a,&b) can be written
This article mainly introduces the use of the Command object to replace the switch statement example, JS specification inside is prohibited to use the switch statement, the use of command objects can be a perfect solution to this problem, the need
The format of the switch statement is as follows: (its function is to select a piece of code execution)
Copy Code code as follows:
Switch (integer selection factor) {
Case Integer value 1: statement; Break
Case Integer value 2: statement;
Synchronize the original text to http://www.waylau.com/java-switch-use-string/When I try to use the string parameter in a switch statement (note ctrType as a string) switch (ctrType) { case "01" : exceptionType = "读FC参数数据";
PHP Switch Statement
The switch statement in PHP is used to perform one of several different actions based on several different conditions.Switch statementIf you want to select a lot of blocks the code will be executed using the switch to
One PHP script index.php
switch statement Application " Class= "STYLE4" > Back home Add to Collection & lt;/td> &nb sp; Latest Products Popular products "> Featured Products > Special Products
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One, switch syntaxis a multi-branch statement that determines which branch to execute by judging the value of an expressionB Reak is used to end a case and then execute a statement other than switchS witch-switch: case-condition switch determines
Java Control statement -- switch statement and modify witch statement
The equivalent judgment of the above if statement can be replaced by switch.
Note that break is usually added after each case, indicating that the current case has been
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