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Boo Vs C# 语言对比 6

2012-10-10 08:26 260 查看

keywords

Boo syntax	C# equivalent
class Car: pass pass keyword	public class Car { }
employee is null	employee == null
"foo" is "bar" employee isa Manager	ReferenceEquals("foo","bar") employee is Manager
employee is not null	employee != null
not employee.IsTemporary	!employee.IsTemporary
employee is not null and employee isa Manager	employee != null && employee is Manage
employee isa Manager or not employee.IsTemporary	(employee is Manager) \|\| (!employee.IsTempor
cast(int, variable)	(int)variable
name = variable as string	string name = variable as string;
typeOfString = typeof(string)	Type typeOfString = typeof(string);
typeOfString = string	Type typeOfString = typeof(string);

Conditionals


if lives == 0: print "game over"	if (lives == 0) Console.WriteLine("game over");
if lives == 0: print "game over" game.Finish()	if( lives == 0) { Console.WriteLine("game over"); game.Finish(); }
if not lives: print "game over"	if (lives == 0) Console.WriteLine("game over");
unless lives: print "game over"	if (lives == 0) Console.WriteLine("game over");
print "game over" unless lives print "game over" if lives == 0	if (lives == 0) Console.WriteLine("game over");
if lives == 0: print "game over" else: print "carry on"	if (lives == 0) Console.WriteLine("game over"); else Console.Writeline("carry on");
if lives == 0: print "game over" elif lives == 1: print "Last life" else: print "carry on"	if (lives == 0) Console.WriteLine("game over"); else if (lives == 1) Console.WriteLine("last life") else Console.Writeline("carry on");

Loops and iterations


while lives != 0: PlayRound()	while(lives!=0) PlayRound();
for i in range(0,10): print i	for(int i=0;i<10;i++) Console.WriteLine(i);
for user in users: print user.Name for user in users: if user.Name is null: continue print user.Name	foreach(User user in users) Console.WriteLine(user.Name); foreach(User user in users) { if(user.Name == null) continue; Console.WriteLine(user.Name); }
index = 0 for user in users: break if index > 10 print user.Name index += 1	int index = 0; foreach(User user in users) { if(index > 10) break; Console.WriteLine(user.Name); index += 1; }
while ie.Busy: Thread.Sleep(50ms)	while( ie.Busy) Thread.Sleep(50);

Type declarations


class Car: wheels as int defStartEngine(): pass	public class Car { protected int wheels; public void StartEngine() { } }
internal class Car: pass	internal class Car {}
struct Point: X as int Y as int	public struct Point { public int X; public int Y; }
class Truck(Car): pass	public class Truck : Car { }
class Car(IDisposable): def Dispose(): pass	public class Car : IDisposable { public void Dispose() { } }
enumTddStages: Red Green Refactor	public enumTddStages { Red, Green, Refactor }

Methods, properties, and control structures


def Start(): pass	public void Start() { }
def Start(async as bool): pass	public void Start(boolasync) { }
def Start(async as bool) as WaitHandle: raise NotImplementedException()	public WaitHandle Start(boolasync) { throw new NotImplementedException(); }
defGetInteger(): return 1	public intGetInteger() { return 1; }
defSetItem(key,val): pass	public void SetItem(object key, object val) { }
*defVarArgs(args as (object)): pass VarArgs(1, "foo")**	public void VarArgs(params object[] args) { }
Name: get: return "Boo"	public string Name { get { return "C#"; } }
Email: get: return email set: email = value Email: get: return email set: email = value	public string Email { get { return email; } set { email = value; } }
[property(Email)] email as string	public string Email { get; set; }
xml = XmlDocument()	XmlDocument xml = new XmlDocument()
emp = Employee(Name: "foo", Id: 15)	varemp = new Employee{ Name = "foo", Id = 15};
class Car(): def constructor(): print "Car created!"	public class Car { public Car() { Console.WriteLine("Car created!"); } }
class Car(): def destructor(): print "died"	public class Car { public ~Car() { Console.WriteLine("died"); } }
raise NotImplementedException()	throw new NotImplementedException();
raise "error happened"	throw new Exception("error happened");
try: # do something except: print "error happened"	try { // do something } catch { Console.WriteLine("error happened"); }
try: # do something except e as SoapException: print e.Detail except e: print e	try { // do something } catch(SoapException e) { Console.WriteLine(e); } catch(Exception e) { Console.WriteLine(e); }
try: # do something except e: print e ensure: print "done"	try { // do something } catch(Exception e) { Console.WriteLine(e); } finally { Console.WriteLine("done"); }
try: # do something except e: print e raise	try { // do something } catch(Exception e) { Console.WriteLine(e); throw; }
save.Click += do(sender,e): print "Clicked"	save.Click += delegate( object sender, EventArgs e ) { Console.WriteLine("Clicked"); }
save.Click += { print "Clicked" }	save.Click += (sender, e) => Console.WriteLine("Clicked");
myList.Find( { i \| i > 5 })	myList.Find(delegate(int i) { return i> 5; });
namespace Foo.Bar.Baz class Foobar: pass	namespace Foo.Bar.Baz { public class Foobar { } }
self.name = "foo";	this.name = "foo";
super.name = "foo";	base.name = "foo";
# single line comment // and this is one as well /* And here is a multi line comment */	// single line comment /* Multi line comment */

Useful macros


assert user is not null	Debug.Assert( user != null, "user is not null"
print "foo"	Console.WriteLine("foo")
using db = RhinoConnection(): pass	using(RhinoConnectiondb = new RhinoConnection()) { }
lock syncLock: #code under lock	lock(syncLock) { // code under lock }

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