刚吃完饭，也没啥事干，来写写blog吧
也许就像你看到的那样，我写的东西是比较偏的
先来举个例子吧：
>>> var person=function(){}
>>> person.aa="aa"
"aa"
>>> person.bb="bb"
"bb"
>>> person.cc="cc"
"cc"
上面是定义了一个person类
给这个类添加了几个类属性
你单独运行
>>> person.cc
"cc"
那是没问题的
但是你在程序中写就有问题了，
看看下面的程序：
for(var t in person){
alert(t);
alert(person.t) //为什么这个就有问题呢，结果为undefined
}
但该为
for(var t in person){
alert(t);
alert(person.[t]) //这样就可以了
}
为什么呢？？？？
The important difference to note between these two syntaxes is that in the first, the property name is an identifier, and in the second, the property name is a string. You'll see why this is so important shortly.
In C, C++, Java, and similar strongly typed languages, an object can have only a fixed number of properties, and the names of these properties must be defined in advance. Since JavaScript is a loosely typed language, this rule does not apply: a program can create any number of properties in any object. When you use the . operator to access a property of an object, however, the name of the property is expressed as an identifier. Identifiers must be typed literally into your JavaScript program; they are not a datatype, so they cannot be manipulated by the program.
On the other hand, when you access a property of an object with the [] array notation, the name of the property is expressed as a string. Strings are JavaScript datatypes, so they can be manipulated and created while a program is running.
还没写完，待我醒来再细说！