In the Swift language, you can use a Nesting in Swift language You can nest When the above code is compiled and executed, it produces the following results: if or else if use another within the statement if or else if statement. 9.14.1. Grammar #
if syntax of the statement:if boolean_expression_1 { /* when boolean_expression_1 execute when expression is true */ if boolean_expression_2 { /* when boolean_expression_1 execute when expression is true */ } }
else if...else , mode and nesting if the sentence is similar. 9.14.2. Example #
import Cocoa var varA:Int = 100; var varB:Int = 200; /* Detect Boolean conditions */ if varA == 100 { /* If the condition is true, execute the following statement */ print("The first condition is true"); if varB == 200 { /* If the condition is true, execute the following statement*/ print("The second condition is also true"); } } print("The value of the varA variable is \(varA)"); print("The value of the varB variable is \(varB)");
The first condition is true The second condition is also true The value of the varA variable is 100 The value of the varB variable is 200