摘要：
一、定义function print(msg)
{ document.write(msg,"");
} function distance(x1,y1,x2,y2)
{ var dx=x2-x1; var dy=y2-y1; return Math.sgrt(dx*dx+dy*dy);
} function factorial(x)
{ if(xm) m=arguments[i]; return m; }
} var largest=max(1,10,100,2,3,1000,4,5,10000,6);
//这样的能够接受任意数目的参数被称作可变参数函数 //callee. 阅读全文