<html> <title>算术运算符</title> <body> <script language="javascript"> a = 10; b = 5; document.write('a = ',a,',b = ',b,'<br>'); c = a + b; document.write('a + b = ',c,'<br>'); c = a - b; document.write('a - b = ',c,'<br>'); c = a * b; document.write('a * b = ',c,'<br>'); c = a / b; document.write('a / b = ',c,'<br>'); </script> </body> </html>