const Int32 MF_BYPOSITION = 1024;//&H400 public enum SystemMenuItemType { Restore, Move, Size, Min, Max, Seperator, Close } public static void RemoveSystemMenuItem(Form form, SystemMenuItemType menuItem) { RemoveMenu(GetSystemMenu(form.Handle.ToInt32(), 0),(int)menuItem, MF_BYPOSITION); } public static void RemoveRestoreSystemMenuItem(Form form) { RemoveSystemMenuItem(form, SystemMenuItemType.Restore); } public static void RemoveMoveSystemMenuItem(Form form) { RemoveSystemMenuItem(form, SystemMenuItemType.Move); } public static void RemoveSizeSystemMenuItem(Form form) { RemoveSystemMenuItem(form, SystemMenuItemType.Size); } public static void RemoveMinSystemMenuItem(Form form) { RemoveSystemMenuItem(form, SystemMenuItemType.Min); } public static void RemoveMaxSystemMenuItem(Form form) { RemoveSystemMenuItem(form, SystemMenuItemType.

foreach (int i in foo) Console.WriteLine(i.ToString()); for (int index = 0; index &lt; len; index++) Console.WriteLine(foo[index].ToString()); for (int index = 0; index &lt; foo.Length; index++) Console.WriteLine(foo[index].ToString()); }</pre>

//兩個有一個為空=&gt;return false; if ((left == null) || (right == null)) return false; //透過left.Equals判斷是否相等 return left.Equals(right); } //檢查是否與自身是相同物件 if (object.ReferenceEquals(this, obj)) return true; //檢查是否型態相等 if (this.GetType() != obj.GetType()) return false; //比較內容是否相等 return CompareMembers(this, obj); }</pre> //檢查是否與自身是相同物件 if (object.ReferenceEquals(this, obj)) return true; //檢查是否型態相等 if (this.GetType() != obj.GetType()) return false; //叫用基底類別的Equals方法 if(!base.Equals(obj)) return false; //比較內容是否相等 return CompareMembers(this, obj); }</pre>

struct Person { public String Name; public Sex Sex; public Person(String name, Sex sex) { this.Name = name; this.Sex = sex; } }</pre> struct Person { public String Name; public Sex Sex; public Person(String name, Sex sex) { this.Name = name; this.Sex = sex; } }</pre>

public string Line { get { return _line; } set { _line = value; } } public string City { get { return _city; } set { _city = value; } } public string State { get { return _state; } set { ValidateState(value); _state = value; } } public int ZipCode { get { return _zipCode; } set { ValidateZip(value); _zipCode = value; } } ... }</pre> public string Line { get { return _line; } } public string City { get { return _city; } } public string State { get { return _state; } } public int ZipCode { get { return _zipCode; } } public Address(string line,string city,string state,int zipCode) { _line = line; _city = city; _state = state; _zipCode = zipCode; ValidateState(state); ValidateZip(zipCode); } }</pre> public PhoneList(Phone[] ph) { _phones = ph; } .

MyData data= GetData(); MyData data= GetData(); IMyInterface data= GetData(); C var = new C(); public void Pay(BankAccount b) { b.Balance -= _salary; } } public void Pay(BankAccount b) { b.Balance -= _salary; } }

[Conditional(“B”)] static void DoIfAandB() { // Code to execute when both A and B are defined… } static void HelloWord() { Console.WriteLine("Hello~"); } static void SayHello1() { #if DEBUG HelloWord(); #endif } [System.Diagnostics .Conditional ("DEBUG")] static void SayHello2() { HelloWord(); }</pre> private static void Main(string[] args) { HelloWord(); SayHello1(); //SayHello2被編譯器拿掉 } private static void SayHello1() { //內容被編譯器拿掉 } [Conditional("DEBUG")] private static void SayHello2() { HelloWord(); } }

[System.Diagnostics.DebuggerDisplay("Name = {Name}, Year = {Year}")] class Person { [System.Diagnostics.DebuggerDisplay("Name = {Name}")] string Name { get; set; } int Year { get; set; } public Person(string name, int year) { this.Name = name; this.Year = year; } }</pre></div>