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D语言访问已修改的联合体成员
import std.stdio; union Data { int i; float f; char str[13]; }; void main( ) { Data data; writeln( "size of : ", data.sizeof);
D语言this指针
import std.stdio; class Box { public: // Constructor definition this(double l = 2.0, double b = 2.0, double h = 2.0) {
D语言类析构函数
import std.stdio; class Line { public: this() { writeln("Object is being created"); } ~this() {
D语言参数化构造函数
import std.stdio; class Line { public: void setLength( double len ) { length = len; } double getLength() {
D语言构造函数
import std.stdio; class Line { public: void setLength( double len ) { length = len; } double getLength() {
D语言类访问修饰符
import std.stdio; class Line { public: double length; double getLength() { return length ; } void setLength( double len ) {
D语言类成员函数
import std.stdio; class Box { public: double length;// Length of a box double breadth;// Breadth of a box
D语言访问数据成员
import std.stdio; class Box { public: double length;// Length of a box double breadth;// Breadth of a box
D语言静态if
import std.stdio; enum Days { sun, mon, tue, wed, thu, fri, sat }; void myFunction(T)(T mytemplate) { static if (is (T == class)) {
D语言发布条件的块
import std.stdio; import std.string; double getAge(double months,double years) in { assert(months >= 0);
D语言在预先条件的块中
import std.stdio; import std.string; bool isValid(string password) in { assert(password.length>=5);
D语言捕捉异常
import std.stdio; import std.string; string division(int a, int b) { string result = ""; try {
D语言消息传递等待
import std.stdio; import std.concurrency; import core.thread; import std.conv; void workerFunc(Tid tid) {
D语言消息传递
import std.stdio; import std.concurrency; import core.thread; import std.conv; void workerFunc(Tid tid) {
D语言线程标识符
import std.stdio; import std.concurrency; void printTid(string tag) { writefln("%s: %s, address: %s", tag, thisTid, &thisTid);
D语言不可变参数
import std.stdio; void print(immutable int[] array) { foreach (i, element; array) { writefln("%s: %s", i, element);
D语言Const变量
import std.stdio; import std.random; void main() { int min = 1; int max = 10; const number = uniform(min, max + 1);
D语言不可变的变量
import std.stdio; import std.random; void main() { int min = 1; int max = 10; immutable number = uniform(min, max + 1);
D语言枚举常量
import std.stdio; enum Day{ Sunday = 1, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday } void main() {
D语言if...else if...else语句
import std.stdio; int main () { /* local variable definition */ int a = 100; /* check the boolean condition */
D语言友元成员
import std.stdio; class Box { protected: double width; } class SmallBox:Box{ // SmallBox is the derived class.
D语言私有成员
import std.stdio; class Box { public: double length; // Member functions definitions double getWidth() {
D语言抽象函数
import std.stdio; import std.string; import std.datetime; abstract class Person { int birthYear, birthDay, birthMonth;
D语言抽象类
import std.stdio; import std.string; import std.datetime; abstract class Person { int birthYear, birthDay, birthMonth;
D语言使用final和static函数的接口
import std.stdio; // Base class interface Shape { public: void setWidth(int w); void setHeight(int h); static void myfunction1() {
D语言接口
import std.stdio; // Base class interface Shape { public: void setWidth(int w); void setHeight(int h); } // Derived class
D语言数据封装
import std.stdio; class Adder { public: // constructor this(int i = 0) { total = i; } // interface to outside world
D语言比较运算符重载
import std.random; import std.stdio; import std.string; struct Box { int volume; int opCmp(const ref Box box) const {
D语言二进制运算符重载
import std.stdio; class Box { public: double getVolume() { return length * breadth * height; } void setLength( double len ) {
D语言一元运算符重载
import std.stdio; class Box { public: double getVolume() { return length * breadth * height; } void setLength( double len ) {
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