逻辑运算符图解:
逻辑且&&:
<?php /** * Created by PhpStorm. * User: Administrator * Date: 2015/6/26 * Time: 18:55 */ function traceNum(){ for($i=0;$i<=100;$i++){ if($i%2==0 && $i%3==0){ //%:求余;输出能同时被2和3整除的数; echo $i."<br/>"; } } } traceNum();
逻辑或||:
<?php /** * Created by PhpStorm. * User: Administrator * Date: 2015/6/26 * Time: 18:55 */ function traceNum2(){ for($j=0;$j<=100;$j++){ if($j%2==0 || $j%3==0){//输出能被2整除或被3整除的数; echo $j."<br/>"; } } } traceNum2();
逻辑非!:
<?php /** * Created by PhpStorm. * User: Administrator * Date: 2015/6/26 * Time: 18:55 */ function traceNum3(){ for($m=0;$m<=100;$m++){ if($m%2!=0){//输出奇数; echo $m."<br/>"; } } } traceNum3();