第一章 物质及其变化 一、物质的分类及转化 (1) 物质的分类 1. 根据物质的组成和性质分类 2. 分散系及其分类 (2) 物质的转化 1. 酸、碱、盐的性质 2. 物质的转化 二、离子反应 (1) 电解质的电离 (2) 离子反应 三、氧化还原反应 (1) 氧化还原反应 (2) 氧化剂和还原剂 第二章 海水
小学数学教材解读的心得体会 延安市新区第一小学 王彩霞 参加了小学数学教材解读，从中感觉到，新教材更注重数学与生活的联系，更重学生个性的发展，强调不同的学生学习不同的数学，使每个学生都能有进步。但实际怎样操作，怎样把握新教材心里却没底。可是，听了领导和老师们的讲
#include <iostream>using namespace std; class A{private: int a, b;public: A(int aa, int bb) { a = aa--; b = a*bb; } void show() { cout << "a=" << a << ", b=" << b << endl; }};int main(){ A x(4, 5)
源程序： #include <iostream>using namespace std; class myComplex{private: double real, imag;public: myComplex(); myComplex(double r, double i); myComplex addCom(myComplex c); void outCom();}; myComplex::myComplex(){ real = 0; imag = 0;}myComplex::myComp
源程序： #include <iostream>using namespace std; class A{ int a, b;public: A(int x = 0, int y = 0) { a = x; b = y; }};int main(){ A *p; p = new A(4,5); system("pause"); return 1;} 运行结果：
源程序： #include <iostream>using namespace std; class Test{private: static int num;public: Test(int); void show();};int Test::num = 5;Test::Test(int n){ num = n;}void Test::show(){ cout << num << endl;}int main(){ Test t(10); t.show(); syst
源程序： #include <iostream>#define PI 3.1415926using namespace std; class Cylinder{private: double r, h;public: Cylinder(double rr, double hh) { r = rr; h = hh; } double circle_length() { return 2 * PI*r; } double circle_area() { return PI*r*r; } d
源程序： #include <iostream>using namespace std;class Test{ int a, b; int getmin() { return (a < b) ? a : b; }public: int c; void setValue(int x1, int x2, int x3) { a = x1; b = x2; c = x3; } int GetMin();};int Test::GetMin(){ int d = getmin(); re
源程序： #include <iostream>using namespace std;void func(int a, int b, int c = 0){ cout << a << b << c << endl;}int main(){ func(5,9); system("pause"); return 1;} 运行结果：
源程序： #include <iostream>#define N 10using namespace std; template <typename T> T sum_array(T a[], int n){ int i,size; T sum=0; cout << "您想求数组前几项的和，请输入："; cin >> size; for (i = 0; i < size; i++) { sum = sum + a[i]; } r
源程序： #include <iostream>#include <string>using namespace std;template <typename T>int myCompare(const T& left, const T& right){ if (left<right) { return-1; } else if (right<left) { return 1; } else return 0;}template<c
源程序： #include <iostream>#include <fstream>using namespace std; class triangle{private: int a, b, c; double area;public: triangle(int aa, int bb, int cc) { a = aa; b = bb; c = cc; } double triangle_area() { int l = (a + b + c) / 2; area =
源程序： #include<iostream>#include<fstream>using namespace std;class CStudent{public: char id[11]; char name[21]; int score;};int main(){ CStudent stu; ofstream outFile("c:\\tmp\\students.dat", ios::out | ios::binary); if (!outFile)
源程序： #include <iostream>#include <fstream>using namespace std;int main(){ ifstream inFile; inFile.open("c:\\tmp\\test.txt", ios::in); //以读的方式打开文本文件 if (inFile) //打开成功，inFile值为true { cout << "成功打开文件：c:\\t
源程序： #include <iostream>using namespace std; class Base{public: virtual void display() = 0; };class Derived1 :public Base{public: void display() { cout << "Derived1 called" << endl; }}; class Derived2 :public Base{public: void
源程序： #include <iostream>using namespace std; class Bas{public: ~Bas() { cout << "Bas析构函数" << endl; } virtual void f() = 0;}; class Dev :public Bas{public: ~Dev() { cout << "Dev析构函数" << endl; } virtual vo
源程序： #include <iostream>using namespace std; class A{public: int i; virtual void func() { cout << "A0" << endl; } virtual void func2() { cout << "A1" << endl; } virtual void func3() { cout << &quo
源程序： #include <iostream>using namespace std; class Base{private: int radius, width;public: Base() { cout << "Base默认构造函数" << endl; } Base(int r, int w) :radius(r), width(w) { cout << "Base带2个参数的构造函数" << e
源程序： #include<iostream>using namespace std; class CBase{public: CBase() {} CBase(CBase &c) { cout << "CBase::复制构造函数" << endl; } CBase & operator=(const CBase & b) { cout << "CBase::operator=" <&
源程序： #include<iostream>using namespace std; class BaseClass1{protected: int v1, v2;public: BaseClass1(); BaseClass1(int, int); ~BaseClass1(); void SetValue(int, int); void PrintValue();}; BaseClass1::BaseClass1() :v1(0), v2(0){ cout << "B
源程序： //基类与子类占用空间及字节对齐#include<iostream>using namespace std; class BaseClass{ int v1,v2; char v4;public: int temp1(){}}; class DerivedClass:public BaseClass{ int v3; int *p;public: int temp(){}}; int main(){ cout<<"Base="<<sizeo
源程序： #include<iostream>using namespace std; class another;class Base{private: float x;public: void print(const another &K);};class Derived:public Base{private: float y;}; class another{private: int aaa;public: another() { aaa=100; } friend void
源程序： #include<iostream>using namespace std; class pointer{public: int a; int *p; //指向整型数的指针 pointer() { a=100; p=new int(10); } pointer(const pointer &tempp) { if(this != &tempp) { a=tempp.a; p=tempp.p; } }}; int main(){ point
源程序： //程序7-9 #include <iostream> using namespace std; int main() { double values[] = { 1.23,20.3456,300.4567,4000.56789,50000.1234567 }; cout.fill('*'); //设置填充字符为星号 * for (int i = 0; i<sizeof(values) / sizeof(double); i++) { c
源程序： //程序7-10 #include <iostream> using namespace std; int main() { char c = 'a', str[80] = "0123456789abcdefghijklmn"; int x = 65; cout << "cout.put('a'):"; cout.put('a'); cout << &
