Java，java官網(wǎng)

Java

        <span>int</span> [] array1 = {1,3,5,7,9,10,2,15,154,10,2,188,200};<span>//</span><span>定義一個(gè)數(shù)組，內(nèi)容為混亂大小</span>
        <span>int</span> index = 0;<span>//</span><span>定義一個(gè)最大值或最小值的位置</span>
        <span>int</span> keyValue = 0;<span>//</span><span>定義最大值或最小值</span>
        <span>int</span> temp = 0;<span>//</span><span>定義一個(gè)臨時(shí)存儲(chǔ)變量</span>
        <span>for</span>(<span>int</span> i=0;i<array1.length;i++){<span>//</span><span>依次循環(huán)所有數(shù)據(jù)</span>
            index = i;<span>//</span><span>將i位置賦值給index</span>
            keyValue = array1[index];<span>//</span><span>將i位置的值賦值給keyValue</span>
            <span>for</span>(<span>int</span> y=i;y<array1.length;y++){<span>//</span><span>再次循環(huán)所有變量，不過這次是長度起始長度為i,最大長度不變</span>
                <span>if</span>(array1[y] < keyValue){<span>//</span><span>如果循環(huán)到的值小于i位置的值</span>
                    index = y;<span>//</span><span>位置重新定義為當(dāng)前位置</span>
                    keyValue = array1[y];<span>//</span><span>最小值為當(dāng)前位置</span>
<span>                }
            }
            temp </span>= array1[i];<span>//</span><span>將i位置的值賦值給臨時(shí)變量(最大值)</span>
            array1[i] = array1[index];<span>//</span><span>將i位置重新定義為index(最小)位置的</span>
            array1[index] = temp;<span>//</span><span>將最大值重新定義給index位置，實(shí)現(xiàn)交換過程</span>
<span>        }
        </span><span>for</span>(<span>int</span> p=0;p<array1.length;p++<span>){
            System.out.print(array1[p]</span>+" "<span>);
        }</span>

<?<span>php

</span><span>/*</span><span> 選擇排序：：對(duì)數(shù)組進(jìn)行從小到大的排序 </span><span>*/</span>
<span>$array</span> = <span>array</span>(2, 100, 3, 50, 48, 99, 502, 30, 27, 15, 16, 300, 11, 9, 5, 4, 42<span>);
</span><span>for</span> (<span>$i</span> = 0; <span>$i</span> < <span>count</span>(<span>$array</span>); <span>$i</span>++<span>) {
    </span><span>$index</span> = <span>$i</span>; <span>//</span><span>將index設(shè)置為當(dāng)前循環(huán)步長</span>
    <span>$keyValue</span> = <span>$array</span>[<span>$index</span>]; <span>//</span><span>將最小值設(shè)置為當(dāng)前</span>
    <span>for</span> (<span>$y</span> = <span>$i</span>; <span>$y</span> < <span>count</span>(<span>$array</span>); <span>$y</span>++<span>) {
        </span><span>if</span>(<span>$array</span>[<span>$y</span>] < <span>$keyValue</span>){ <span>//</span><span>如果循環(huán)余下的數(shù)據(jù)，有比i更小的值</span>
            <span>$index</span> = <span>$y</span>; <span>//</span><span>記錄最小值的索引位置</span>
            <span>$keyValue</span> = <span>$array</span>[<span>$index</span>];<span>//</span><span>將最小值設(shè)置為最小值索引位置的值</span>
<span>        }
    }
    </span><span>$temp</span> = <span>$array</span>[<span>$i</span>]; <span>//</span><span>將當(dāng)前循環(huán)的值賦值給臨時(shí)變量（最大值）</span>
    <span>$array</span>[<span>$i</span>] = <span>$array</span>[<span>$index</span>];<span>//</span><span>將最小值賦值給當(dāng)前位置</span>
    <span>$array</span>[<span>$index</span>] = <span>$temp</span>;<span>//</span><span>將最小值的位置填充上最大值</span>
<span>}
 </span><span>print_r</span>(<span>$array</span><span>);
</span>?>

?

在java中+=是什

JAVA是什？

Java是一種可以撰寫跨平臺(tái)應(yīng)用軟件的面向?qū)ο蟮某绦蛟O(shè)計(jì)語言，是由Sun Microsystems公司于1995年5月推出的Java程序設(shè)計(jì)語言和Java平臺(tái)（即JavaSE, JavaEE, JavaME）的總稱。Java 技術(shù)具有卓越的通用性、高效性、平臺(tái)移植性和安全性，廣泛應(yīng)用于個(gè)人PC、數(shù)據(jù)中心、游戲控制臺(tái)、科學(xué)超級(jí)計(jì)算機(jī)、移動(dòng)電話和互聯(lián)網(wǎng)，同時(shí)擁有全球最大的開發(fā)者專業(yè)社群。