计算器
来源：互联网 发布：网络歌曲男人伤感情歌 编辑：程序博客网 时间：2024/04/29 23:56
把如下代码加入<body>区域中<script language="JavaScript"><!-- Hide the script from old browsers --function compute(obj) {obj.expr.value = eval(obj.expr.value)}var one = '1'var two = '2'var three = '3'var four = '4'var five = '5'var six = '6'var seven = '7'var eight = '8'var nine = '9'var zero = '0'var plus = '+'var minus = '-'var multiply = '*'var divide = 'http://sucai.heima.com/sucai/'var decimal = '.'function enter(obj, string) {obj.expr.value += string}function clear(obj) {obj.expr.value = ''}// --End Hiding Here --></script><form name="calc"><table border=1><td colspan=4><input type="text" name="expr" size=30 action="http://sucai.heima.com/sucai/js/compute(this.form)"> <tr><td><input type="button" value=" 7 " onClick="enter(this.form, seven)"><td><input type="button" value=" 8 " onClick="enter(this.form, eight)"><td><input type="button" value=" 9 " onClick="enter(this.form, nine)"><td><input type="button" value=" / " onClick="enter(this.form, divide)"><tr><td><input type="button" value=" 4 " onClick="enter(this.form, four)"><td><input type="button" value=" 5 " onClick="enter(this.form, five)"><td><input type="button" value=" 6 " onClick="enter(this.form, six)"><td><input type="button" value=" * " onClick="enter(this.form, multiply)"><tr><td><input type="button" value=" 1 " onClick="enter(this.form, one)"><td><input type="button" value=" 2 " onClick="enter(this.form, two)"><td><input type="button" value=" 3 " onClick="enter(this.form, three)"><td><input type="button" value=" - " onClick="enter(this.form, minus)"><tr><td colspan=2><input type="button" value=" 0 " onClick="enter(this.form, zero)"><td><input type="button" value=" . " onClick="enter(this.form, decimal)"><td><input type="button" value=" + " onClick="enter(this.form, plus)"><tr><td colspan=2><input type="button" value=" = " onClick="compute(this.form)"><td colspan=2><input type="button" value="AC" size= 3 onClick="clear(this.form)"> </table></form>
