用php實現加減乘除計算器。代碼很簡單哦!
<?php header("content-type:text/html;charset=utf-8"); session_start(); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-CN" dir="ltr"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>簡單計算機</title> </head> <body> <form action="jisuan.php" method="post"> 第一個數<input type="text" value="" name="num1"><br /> 計算符號<select name="oper"> <option value="+">+</option> <option value="-">-</option> <option value="*">*</option> <option value="/">/</option> </select><br /> 第二個數<input type="text" value="" name="num2"><br /> <input type="submit" value="計算結果"><br /> </form> </body> </html> <?php $num1=$_POST['num1']; $num2=$_POST['num2']; $oper=$_POST['oper']; $rs=0; switch($oper){ case "+": $rs=$num1+$num2; break; case "-": $rs=$num1-$num2; break; case "*": $rs=$num1*$num2; break; case "/": $rs=$num1/$num2; break; default: echo "您輸入的不正確"; } $_SESSION['rs']=$rs; echo '計算結果為:'.$_SESSION['rs']; ?>
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