] 源码如下 ---------------------------------------------------------- <!-- This script has been in the http://www.javascripts.com Javascript Public Library! --> <!-- Note that though this material may have been in a public depository, certain author copyright restrictions may apply. --> <html> <head> <style> <!-- body, p, div,td,input {font:menu;line-height: 150%} .div { font-family: 宋体; font-size: 12px; line-height: 150% } --> </style> <title>Area Calculator－www.51windows.Net</title> </head>
<body> <script language="JavaScript"> function Circle(form) {form.circleanswer.value = form.circleradius.value * form.circleradius.value * 3.14159265} function Rec(form) {form.recanswer.value = form.reclength.value * form.recheight.value} function Sphere(form) {form.sphereanswer.value = form.sphereradius.value * form.sphereradius.value * 3.14159265 * 4} function Square(form) {form.squareanswer.value = form.squarelength.value * form.squarelength.value} function Tri(form) {form.trianswer.value = form.tribase.value * form.triheight.value / 2} </script> <form> <center><h1>Circle</h1> Enter the radius<input type="text" name="circleradius"><br> <input type="button" value="Find Area" onClick="Circle(this.form)"><br> <input type="text" name="circleanswer">square feet<br> <h1>Rectangle</h1> Enter the length of one side<input type="text" name="reclength"><br> Enter the height of one side<input type="text" name="recheight"><br> <input type="button" value="Find Area" onClick="Rec(this.form)"><br> <input type="text" name="recanswer">square feet<br> <h1>Sphere</h1> Enter the radius<input type="text" name="sphereradius"><br> <input type="button" value="Find Area" onClick="Sphere(this.form)"><br> <input type="text" name="sphereanswer">square feet<br> <h1>Square</h1> Enter the length of one side<input type="text" name="squarelength"><br> <input type="button" value="Find Area" onClick="Square(this.form)"><br> <input type="text" name="squareanswer">square feet<br> <h1>Triangle</h1> Enter the length of the base<input type="text" name="tribase"><br> Enter the height<input type="text" name="triheight"><br> <input type="button" value="Find Area" onClick="Tri(this.form)"><br> <input type="text" name="trianswer">square feet </form> <br> <br> </body> </html>
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