May 12, 2021 ASP.NET
Programming logic: Code is executed according to conditions.
The code is allowed to be executed according to the conditions.
Use the if statement to determine the condition. Based on the judgment, the if statement returns true or false:
The if statement can contain the else condition.
The else condition defines the code that is executed when the condition is false.
Note: In the example above, if the first condition is true, the code for the if block will be executed. The else condition overrides "all cases" except the if condition.
Several conditions determine that you can use the else if condition:
In the example above, if the first condition is true, the code for the if block will be executed.
If the first condition is not true and the second condition is true, the code for the else if block will be executed.
There is no limit to the number of else if conditions.
If neither the if and else if conditions are true, the last else block (without conditions) overrides "all other cases."
Switch blocks can be used to test for individual conditions:
The test value (day) is written in parentheses. E ach individual test condition has a case value that ends with a sign and any number of lines of code that end with a break statement. I f the test value matches the case value, the corresponding line of code is executed.
The switch block has a default situation (default:), which overrides "all other cases" when all specified cases do not match.