fallthrough in switch case statement

In Swift's switch, the case is followed by the use of Fallthrough, which is the same as the usage without break after OC case!The use of Fallthrough should be noted:1. When Fallthrough is added, the following case or default statement will be run

In the switch structure of Swift, note the usage of fallthrough. switchfallthrough In the swift switch, the use of fallthrough is added after the case, which is the same as that of the case of OC without break! Note the following when using

The switch statement in Swift, as long as the first match (case) completes, not through the bottom of subsequent cases (case), as it does in C and C + + programming languages. The following are common syntax for switch statements in C and C + +:

The Switch...case statement in Swift can determine the object type, and the objective-c must be an integer.Can not penetrate, can not write break, var rank = "A" switch rank{case "a"://equivalent to if print ("excellent") Case

The switch in Swift does not automatically fall from the previous case branch to the next one, if it is determined that this effect can be used in each case branch that requires the attributeFallthrough keywords//throughLet integer =5var desc="The

Grammarsyntax for switch statements in the Swift language: Copy Code code as follows: Switch Expression { Case expression1: Statement (s) Fallthrough/* Optional * Case Expression2, Expression3: Statement (s) Fallthrough/*

Switch as an essential statement in the selection structure is also added to Swift, as long as people with programming experience are not unfamiliar with switch statements, but Apple has greatly enhanced the switch to have features that are not

This is a creation in Article, where the information may have evolved or changed. Depending on the incoming condition, the SELECT statement executes a different statement. The following example prints a different content based on the input integer

Tag: swift IOS objective-C Condition Statement It is usually very useful to execute specific code according to specific conditions. For example, when an error occurs, you may want to run additional code; or, when the input value is too large or too

In the code business, conditional judgment is essential, and the statements that control the flow are similar in each language. Swift includes the following:If,switch,for-in,for,while,do-whileIf condition statement (if-else) (If ... else)Executes