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Swift for-in循环

for-in 循环迭代项目,如数字范围,数组中的项目,或字符串中的字符集:

语法

for-in 循环在 Swift 编程语言的语法:

for index in var {
   statement(s)
}

流程图

for-in Loop

示例

import Cocoa

var someInts:[Int] = [11, 22, 33]

for item in someInts {
   println( "Value of  index is \(item)")
}

当执行上面的代码,它产生以下结果:

Value of index is 11
Value of index is 22
Value of index is 33