练习2.42 这道题曾经在C#中写过，但是写出来的代码却没有Lisp中的朴素。用了一大堆的数组和for循环。但是在这里，用car、cdr来构造就行了。 我们按书中给出的步骤来一步一步求解这个问题...

 //The prime factors of 13195 are 5, 7, 13 and 29. //What is the largest prime factor of the number 600851475143 ? static void Main(string[] args) { //int[] number = new int...

练习3-7 原文 Exercise 3.7. Consider the bank account objects created by make-account, with the password modification described in exercise 3.3. Suppose that our banking system r...

 //Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: //1, 2, 3, 5, 8, 13, 21, 34, ...

练习3-8 原文 Exercise 3.8. When we defined the evaluation model in section 1.1.3, we said that the first step in evaluating an expression is to evaluate its subexpressions. But ...

 练习1.6 这道题通过由一个新版本的if来引出，主要讨论的还是应用序和正则序的问题。我看到“将if提供为一种特殊形式”时还满头雾水，并不太清楚什么特殊形式。当再返回看if的语法时才发...

直接将Eclipse关掉，重新打开后也许就好了。 如还没好，就执行如下步骤： 1.如果还没有添加ADT，则：Help -> Add New Software -> Add 在“Name”中填入ADT。 2.如果已经安装了ADT，就直接将...

直接将Eclipse关掉，重新打开后也许就好了。 如还没好，就执行如下步骤： 1.如果还没有添加ADT，则：Help -> Add New Software -> Add 在“Name”中填入ADT。 2.如果已经安装了ADT，就直接将...

练习3-81 原文 Exercise 3.81. Exercise 3.6 discussed generalizing the random-number generator to allow one to reset the random-number sequence so as to produce repeatable sequen...

练习4-4 原文 Exercise 4.4. Recall the definitions of the special forms and and or from chapter 1: ● and: The expressions are evaluated from left to right. If any expression eva...

top-level const As we’ve seen, a pointer is an object that can point to a different object. As a result, we can talk independently about whether a pointer is const and whether...

List Initializer or Element Count? In a few cases, what initialization means depends upon whether we use curly braces or parentheses to pass the initializer(s). For example, whe...

练习3-42 原文 Exercise 3.42. Ben Bitdiddle suggests that it’s a waste of time to create a new serialized procedure in response to every withdraw and deposit message. He says t...

 一、Frame、Page框架的相关介绍 1、Frame类： 继承层次结构 System.Object System.Windows.Threading.DispatcherObject System.Windows.DependencyObject System.Windows.Media.Visual ...

 sealed关键字 如果我们将类标记为sealed，编译器将不会允许我们从这个类型派生。（C#结构总是隐式密封的。因此，我们永远不可以从结构继承结构，从类继承结构或从结构继承类。结构只能用...

Processing Every Character? Use Range-Based for If we want to do something to every character in a string, by far the best approach is to use a statement introduced by the new s...

1.对于表的所有操作来说，都可以使用数组来实现，而且数组虽然是静态分配的，但内部存储数组的vector类却允许在需要时将数组的大小增加一倍。 2.正是因为数组的实现，使得printList以线性时间...

首先，登陆到Github上并创建一个新repository。在屏幕右上角，点击“+”标记，并且选择“New repository”。 现在完成这个表格以新建一个叫做testproject的新repository，让这个repository自...