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switch statement usage
Switch statement usage: 1. The Switch statement can only be used for integer types, enumeration types and String types, and cannot be used for floating point types and Boolean types; 2. Each case statement must be followed by a break statement to prevent other cases from being executed. The code block without a break statement will continue to execute the code block of the next case; 3. Multiple values can be matched in one case statement, separated by commas; 4. The default code block in the Switch statement is optional, etc. wait.
How to use switch statementSwitch statement usage: 1. The Switch statement can only be used for integer types, enumeration types and String types, and cannot be used for floating point types and Boolean types; 2. Each case statement must be followed by a break statement to prevent other cases from being executed. The code block without a break statement will continue to execute the code block of the next case; 3. Multiple values can be matched in one case statement, separated by commas; 4. The default code block in the Switch statement is optional, etc. wait.
What is the format of the switch statement? How to use switch statementIn js, the switch statement is also a commonly used statement. The switch statement will be used to compare an expression with multiple values. However, many novices do not know what the switch statement format is? How to use switch statement? Let’s summarize it below.
How to use Java block scope, conditional statements and switch statementsBlock Scope Before learning more about control structures, you must first understand the role of blocks. Definition: A statement consisting of multiple Java statements enclosed by a pair of curly braces. Function: Blocks determine the scope of variables, and one block can be nested on another block. Example: packagedecom1;publicclasscuowu{publicstaticvoidmain(String[]args){//The second block is nested inside the first block. bytei=12;//Variable i only has an effect in the second block area, including nested blocks. {//The third block is nested inside the second block and also inside the first block. inta=3;//Variable a only plays a role in the block it is in
What is PHP Switch statement? Detailed explanation of switch statement usageThe previous article introduced to you "How do you understand the use of string function library?" Let’s discuss it together! ! ! ", this article continues to introduce to you what the PHP Switch statement is and how to use the Switch statement. If you are a "newbie", come and learn together! ! !
Detailed explanation of the usage of for loop and switch statement in thinkPHP templateThis article mainly introduces the usage of for loop and switch statement in thinkPHP template, and analyzes the specific functions, definitions and specific usage techniques of for loop and switch statement in the form of examples. Friends in need can refer to it.
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