5.5 FORM form ex28.html <html> <head>

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1 5.5 FORM form ex28.html <title></title> function calc() { var ar = document.getelementbyid("ar"); if(n1.value == "" n2.value == "") { window.alert(""); else { var eq = n1.value + ar.options[ar.selectedindex].value + n2.value; var txt = document.createtextnode(eq + "=" + eval(eq)); function cls() { if(n1.value!= "" n2.value!= "") { return window.confirm(""); else { return false; function mes_text(obj) { var txt = document.createtextnode('"' + obj.name + '"'); function mes_select(obj) { var ar = obj.options[obj.selectedindex].value; var txt = document.createtextnode('"' + ar + '"'); <h1></h1> <form onsubmit="calc(); return false;" onreset="return cls();"> <input type="text" name="n1" id="n1" onchange="mes_text(this)"> <select name="ar" id="ar" onchange="mes_select(this)"> <option value="+">+ <option value="-">- <option value="*">* <option value="/">/ </select> <input type="text" name="n2" id="n2" onchange="mes_text(this)">

2 <input type="submit" value=""> <input type="reset" value=""> <div name="ans" id="ans"></div> onsubmit onclear true false cls confirm OK true false onreset OK reset reset onsubmit PHP radio ex29.html <title></title> function check() { var carry=document.getelementsbyname("carry"); var flag = 0; for(i = 0; i < carry.length; i++) { if(carry[i].checked) { flag++; if(flag == 0) { window.alert(""); return false; return true; <h1></h1> <form onsubmit="return check();" method="get" action="ex29.php"> <input type="radio" name="carry" id="carry" value="0"> <font color="red">docomo</font> <input type="radio" name="carry" id="carry" value="1"> <font color="orange">au</font> <input type="radio" name="carry" id="carry" value="2"> <font color="gray">softbank</font> <input type="radio" name="carry" id="carry" value="3"> <input type="radio" name="carry" id="carry" value="4"> <br> <input type="submit" value="">

3 ex29.php <title></title> <?php $carry = $_GET['carry']; $in = fopen("ex29.txt","r"); $dat = fgetcsv($in, 80); fclose($in); $dat[$carrya]++; print "<table border=1> n"; print "<tr><th>docomo</th><td>$dat[0]</td></tr> n"; print "<tr><th>au</th><td>$dat[1]</td></tr> n"; print "<tr><th>softbank</th><td>$dat[2]</td></tr> n"; print "<tr><th></th><td>$dat[3]</td></tr> n"; print "<tr><th></th><td>$dat[4]</td></tr> n"; print "</table>"; $out = fopen("ex29.txt","w"); if(flock($out, LOCK_EX)) { fwrite($out, $dat[0]); for($i = 1; $i < 5; $i++) { fwrite($out, ", ". $dat[$i] - 0); flock($out, LOCK_UN);?> <br> <a href="ex29.html"></a> ex29.txt() 0, 0, 0, 0, 0 JavaScript()PHP CGI() JavaScript PHP PHP 5 Ajax Ajax JavaScript PHP( CGI)

4 5.2 ex30.html <title></title> var data = new Array(0); function adddata() { <body onload="showclock()"> <h1></h1> <input type="text" name="num" id="num"> <input type="button" value="" onclick="adddata()"> :<span name="avg" id="avg"></span> :<br> <span name="list" id="list"></span>

5 "" ex28.html try: catch: finally: throw: ex31.html <title></title> function calc() { var ar = document.getelementbyid("ar"); var eq = n1.value + ar.options[ar.selectedindex].value + n2.value; try { if(ar.selectedindex == 3 && n2.value == 0) { throw "0 "; catch(e) { alert(e); return; try { var txt = document.createtextnode(eq + "=" + eval(eq)); catch (e) { alert(""); <h1></h1> <form onsubmit="calc(); return false"> <input type="text" name="n1" id="n1"> <select name="ar" id="ar"> <option value="+">+ <option value="-">- <option value="*">* <option value="/">/ </select> <input type="text" name="n2" id="n2"> <input type="submit" value=""> <div name="ans" id="ans"></div>

JavaScript CSCI 201 Principles of Software Development

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