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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
                1.while循環 ~~~ while(循環條件){ 循環操作 } /*********************/ int i=1; while(i<=30){ System.out.println("我能行!"); i++; } /*********************/ 循環的三要素(跑圈為例) (1)循環變量初始化 (2)循環的判斷條件 (3)循環體中改變循環變量的值 ~~~ 2.累加(1+2...+100) ~~~ public class Test{ public static void main(String[] args){ int i=1; int sum=0; while(i<=100){ sum+=i; i++; } System.out.println("1+2+..+100的值為:"+sum); } } ~~~ 3.輸入人數及每人的分數,求平均分。 ![](https://box.kancloud.cn/68bbd9e9c1d99fdb99cf4d9b1bc6079a_688x298.png) 4.2006年培訓學員8萬人,每年增長25%,請問按此增長速度,到納音培訓人員人數將達到20萬人? ![](https://box.kancloud.cn/bf160e9b32344922cac573811654a301_495x193.png) 5.do-while循環 ~~~ do{ 循環操作 }while(循環條件); ~~~ ![](https://box.kancloud.cn/47ff3a6cd52c868c8d97bccb45a96932_494x214.png) ![](https://box.kancloud.cn/8209ae84b6298e7f04961d00a53ce8ce_690x371.png) 6.for循環 ~~~ for(int i=0;i<100;i++){ System.out.println("好好學習"); } ~~~ ![](https://box.kancloud.cn/73b192b82403a14fbe35c81d5784d2cb_226x121.png) ![](https://box.kancloud.cn/89b3c5efdd0f796af7104b28a795d4e5_457x200.png) 7.break ![](https://box.kancloud.cn/d978c30fec210f3fb63fc78eb054bcd9_697x485.png) 8.continue ![](https://box.kancloud.cn/b74103573a004dcca827ab7b9b1f7f50_768x413.png) 9.循環嵌套 ![](https://box.kancloud.cn/dbfc3fcb8b2f65209e00515decfc2242_479x255.png) ![](https://box.kancloud.cn/e33f898549375f9057cb3cc9406501a9_255x360.png)
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