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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ### 步長 前面講解區間時,使用的都是**默認的步長1**,即每次遞增或遞減的差值為1,如果**想要在循環中指定步長,則需要使用step(step:Int)函數來實現,step中的()也可以省略,書寫時在step后面加上空格符,空格符后面加上步長即可**。 ``` fun main(args: Array<String>) { for (i in 1..4 step 2) { // i in [1 , 4] print(i.toString() + "\t") } print("\n") for (i in 4 downTo 1 step 2) { // i in [4 , 1] print(i.toString() + "\t") } } ``` 運行結果 ``` 1 3 4 2 ``` ![](https://img.kancloud.cn/b3/e1/b3e1e5687cb9c787ab172fa4f9a3858d_1374x260.png)
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                              哎呀哎呀视频在线观看