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PHP练习题(一),PHP练习题(
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PHP练习题(一),PHP练习题(_PHP教程

Jul 12, 2016 am 08:54 AM
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PHP练习题(一),PHP练习题(

程序1 .
题目: 企业发放的奖金根据利润提成。利润(I)低于或等于10万元时,奖金可提10% ; 利润高于10 万元, 低于20 万元时, 低于10万元的部分按10% 提成,高于 10万元的部分,可提成7.5%;20万到40 万之间时,高于20 万元的部分,可提成5%; 高于40 万元的部分, 可提成1%,从键盘输入当月利润I,求应发放奖金总数?(利用if else if)

<span> 1</span> <span>$I</span> = 4324128<span>;
</span><span> 2</span> <span>$bonus</span> = 0;  <span>//</span><span> 奖金数</span>
<span> 3</span> 
<span> 4</span> <span>if</span> (<span>$I</span> <= 100000<span>) {
</span><span> 5</span>     <span>$bonus</span> = <span>$I</span> * 1/10<span>;
</span><span> 6</span> } <span>else</span> <span>if</span> (<span>$I</span> > 100000 && <span>$I</span> < 200000<span>) {
</span><span> 7</span>     <span>$bonus</span> = <span>$I</span> % 100000 * 7.5/100 + (<span>$I</span> - <span>$I</span> % 100000) * 1/10<span>;
</span><span> 8</span> } <span>else</span> <span>if</span> (<span>$I</span> >= 200000 && <span>$I</span> < 400000<span>) {
</span><span> 9</span>     <span>$bonus</span> = (<span>$I</span> - 200000) * 5/100 + (<span>$I</span> % 100000 * 7.5/100) + (<span>$I</span> - <span>$I</span> % 100000) * 1/10<span>;
</span><span>10</span> } <span>else</span><span> {
</span><span>11</span>     <span>$bonus</span> = (<span>$I</span> - 400000) * 1/100 + (<span>$I</span> - 200000) * 5/100 + (<span>$I</span> % 100000 * 7.5/100) + (<span>$I</span> - <span>$I</span> % 100000) * 1/10<span>;
</span><span>12</span> <span>}
</span><span>13</span> 
<span>14</span> <span>echo</span> 'bonus :' . <span>$bonus</span>.'<br/>';
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程序2.
题目: 输入三个整数x, y, z, 找出最大的数;

<span>1</span> <span>$x</span> = 4<span>;
</span><span>2</span> <span>$y</span> = 7<span>;
</span><span>3</span> <span>$z</span> = 2<span>;
</span><span>4</span> 
<span>5</span> <span>$max</span> = <span>$x</span>><span>$y</span> ? <span>$x</span> : <span>$y</span><span>;
</span><span>6</span> <span>$max</span> = <span>$z</span>><span>$max</span> ? <span>$z</span> : <span>$max</span><span>;
</span><span>7</span> 
<span>8</span> <span>echo</span> 'max number :' . <span>$max</span> .'<br/>';
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程序3.
题目: 打印出所有的“水仙花数”, 所谓“水仙花数”是指一个三位数,其各位数字立方和等于该数本身。

<span> 1</span> <span>$j</span> = 0; <span>//</span><span> 数的个位 </span>
<span> 2</span> <span>$k</span> = 0; <span>//</span><span> 数的十位</span>
<span> 3</span> <span>$l</span> = 0; <span>//</span><span> 数的百位</span>
<span> 4</span> <span>for</span>(<span>$i</span> = 100; <span>$i</span><1000; <span>$i</span>++<span>){
</span><span> 5</span>     <span>$j</span> = <span>$i</span> % 10<span>;
</span><span> 6</span>     <span>$k</span> = (<span>$i</span> % 100 - <span>$j</span>) / 10<span>;
</span><span> 7</span>     <span>$l</span> = (<span>$i</span> - <span>$i</span> % 100) / 100<span>;
</span><span> 8</span>     <span>if</span> (<span>$i</span> == (<span>$j</span>*<span>$j</span>*<span>$j</span> + <span>$k</span>*<span>$k</span>*<span>$k</span> + <span>$l</span>*<span>$l</span>*<span>$l</span><span>)) {
</span><span> 9</span>         <span>echo</span> <span>$i</span> . ' '<span>;
</span><span>10</span> <span>    } 
</span><span>11</span> }
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程序4.
题目:猴子吃桃问题:猴子第一天摘下若干个桃子,当即吃了一半,还不过瘾,又吃了一个,第二天早上又将剩下的桃子吃掉一半,又多吃了一个。 以后每天早上都吃了前一天剩下的一半零一个。到第10天早上想再吃时,只剩下一个桃子了。求第一天共摘了多少。 (采用逆向思维,从后往前推)

<span>1</span> <span>$sum</span> = 1<span>;
</span><span>2</span> <span>for</span> (<span>$i</span> = 1; <span>$i</span> <= 10; <span>$i</span>++<span>) {
</span><span>3</span>     <span>$sum</span> = (<span>$sum</span> + 1) * 2<span>;
</span><span>4</span> <span>} 
</span><span>5</span> <span>echo</span> '桃子总数:' .<span>$sum</span>. '<br/>';
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程序5.
题目: 有一分数序列: 2/1, 3/2, 5/3, 8/5, 13/8, 21/13...求出这个数列的前20项之和。(注意分子和分母的变化规律)

<span>1</span> <span>$sum2</span> = 0<span>;
</span><span>2</span> <span>$a</span> = 2<span>;
</span><span>3</span> <span>$b</span> = 1<span>;
</span><span>4</span> <span>for</span>(<span>$i</span> = 1; <span>$i</span> <= 20; <span>$i</span>++<span>) {
</span><span>5</span>     <span>$sum2</span> = <span>$sum2</span> + <span>$a</span>/<span>$b</span><span>;
</span><span>6</span>     <span>$b</span> = <span>$a</span><span>;
</span><span>7</span>     <span>$a</span> += <span>$b</span><span>;
</span><span>8</span> <span>}
</span><span>9</span> <span>echo</span> '前20项之和为:' .<span>$sum2</span>.'<br/>';
Salin selepas log masuk

 


 
 

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