JavaScript 数字最大值 javascript 创建对象 JavaScript 变量声明 JavaScript 数字最大值 <html> <head> <script> function showMinValue() { var val = Number.MIN_VALUE; alert("Value of Number.MIN_VALUE : " + val ); } function showMaxValue() { var val = Number.MAX_VALUE; alert("Value of Number.MAX_VALUE : " + val ); } </script> </head> <body> <p>Click the following to see the result:</p> <form> <input type="button" value="MIN" onclick="showMinValue();" /> <input type="button" value="MAX" onclick="showMaxValue();" /> </form> </body> </html> javascript 创建对象 JavaScript 变量声明