摘要: 什么是闭包? 简单来讲,闭包允许你将一些行为封装,将它像一个对象一样传来递去,而且它依然能够访问到原来第一次声明时的上下文。这样可以使控制结构、逻辑操作等从调用细节中分离出来。访问原来上下文的能力是闭包区别一般对象的重要特征,尽管在实现上只是多了一些编译器技巧。 [C#和Java的闭包:http://www.zxbc.cn/html/20080516/34373.html] 闭包的副作用 闭包并... 阅读全文
posted @ 2009-11-21 23:37 pursue 阅读(818) 评论(0) 推荐(0) 编辑
摘要: A bond may be purchased at a discount Bonds may also be purchased at a premium The price of a bond at any particular time depends on a number of factors, including how its coupon rate compares with ... 阅读全文
posted @ 2009-11-21 17:07 pursue 阅读(82) 评论(0) 推荐(0) 编辑
摘要:   1)  为什么32位的系统可以使用超过4GB的内存? 只要CPU、主板、操作系统都支持并启用PAE(物理地址扩展),那么此时的物理内存地址总线就是36位。 2^36 = 68719476736 = 64 GB 另外,当前的x64并非真正使用64位的地址总线,而是48位,所以内存上限是 2^48。 所以,现在的32位系统并非纯正的“32位”;x64并非纯正的"64... 阅读全文
posted @ 2009-11-21 15:14 pursue 阅读(1042) 评论(0) 推荐(2) 编辑
摘要: Leo: Did you vote for the Chinese Connection? 你为中国缘投票了吗? Lucy: Chinese Connection? 中国缘? Leo: Yes, it is co-sponsored by the China Radio International, China People's Friendship Association and the S... 阅读全文
posted @ 2009-11-21 11:38 pursue 阅读(142) 评论(0) 推荐(0) 编辑
摘要: Standing Committee of the National People's Congress  Leo: Do you know who is Baobao Wan? 你知道万宝宝是谁吗? Lucy: Is she a new superstar? 她是新星吗? Leo: Then you must know her grandfather, Wanli, the fo... 阅读全文
posted @ 2009-11-21 11:23 pursue 阅读(177) 评论(0) 推荐(0) 编辑
摘要: 杨: Wow, so beautiful! 哇,真漂亮! 丽: Yes, the good figure and sweet smile of students always represent Thailand. 是的,学生们姣好的身材和温柔的笑容一直是泰国的招牌。 杨: Students? So they are wearing uniforms? 学生?那么他们穿着校服? 丽: Ye... 阅读全文
posted @ 2009-11-21 11:16 pursue 阅读(164) 评论(0) 推荐(0) 编辑
摘要: Leo: How shame! Isinbayeva lost the World Championship in Berlin. 太遗憾了,伊辛巴耶娃在柏林世锦赛上输了! Lucy: Really? She had broken the world record for 26 times, and kept be the winner before this season. 真的吗?她曾26... 阅读全文
posted @ 2009-11-21 11:09 pursue 阅读(83) 评论(0) 推荐(0) 编辑
摘要: 杨: Hey, why you change channel? I am watching the MTV. 嘿,为什么你要换台?我在看MTV。 丽: Next time never watch anything about Jang Na Ra. 下次不要看任何有关张娜拉的东西。 杨: Why? She is ok I think, and you don’t hate her befor... 阅读全文
posted @ 2009-11-21 11:05 pursue 阅读(81) 评论(0) 推荐(0) 编辑
摘要: Javier: Welcome to J.Lo's new restaurant. I heard the food is really authentic. 欢迎来到珍妮弗罗佩兹新开的餐馆。我听说这里的食物非常道地。 Mei: It's Puerto Rican? 是波多黎各菜? Javier: Actually it's a Cuban restaurant, like the ones... 阅读全文
posted @ 2009-11-21 11:02 pursue 阅读(116) 评论(0) 推荐(0) 编辑