切换布局
显示结果
<html> <head> <title>JavaScript Math sqrt() Method</title> </head> <body> <script type = "text/javascript"> var value = Math.sqrt( 0.5 ); document.write("First Test Value : " + value ); var value = Math.sqrt( 81 ); document.write("<br />Second Test Value : " + value ); var value = Math.sqrt( 13 ); document.write("<br />Third Test Value : " + value ); var value = Math.sqrt( -4 ); document.write("<br />Fourth Test Value : " + value ); </script> </body> </html>
