原文地址:http://www.haxenme.org/developers/documentation/actionscript-developers/
为了避免以后要翻墙，先在这翻译备份一个:
haxe中包名小写，类名大写，上面是as3语法，下面是haxe语法
Basic Types
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Boolean
int
Number
Object
void
Array
Vector.
Bool
Int
Float
Dynamic
Void
Array
Array
Package Declarations
package com.example.myapplication {
}
package com.example.myapplication;
Defining a Class
public class MyClass {
public function MyClass () {
}
}
class MyClass {
public function new () {
}
}
Loops
for (var i:uint = 0; i < 100; i++) {
}
for each (var value:String in items) {
}
for (var propertyName:String in object) {
}
for (i in 0...100) {
}
for (value in items) {
}
var fields = Reflect.fields (object);
for (propertyName in fields) {
}
Switch Statements
switch (value) {
case 1:
trace ("Equal to 1");
break;
default:
trace ("Not equal to 1");
break;
}
switch (value) {
case 1:
trace ("Equal to 1");
default:
trace ("Not equal to 1");
}
Type Inference
var hi = "Hello World";
// type is Object
// fails to compile in strict mode
var hi = "Hello World";
// type is String
// even works for code completion
Type Casting
var car:Car = vehicle as Car;
var toString:String = String (10);
var toNumber:Number = Number ("10");
var toInteger:int = int (10.1);
var car:Car = cast vehicle;
// or for a safe cast:
var car = cast (vehicle, Car);
var toString = Std.string (10);
var toNumber = Std.parseFloat ("10");
var toInteger = Std.int (10.1);
Type Details
if (vehicle is Car) {
}
import flash.utils.getDefinitionByName;
import flash.utils.getQualifiedClassName;
name = getQualifiedClassName (vehicle);
type = Class (getDefinitionByName (name);
if (Std.is (vehicle, Car)) {
}
type = Type.getClass (vehicle);
name = Type.getClassName (type);
Checking for Null
if (object == null) {
}
if (!object) {
}
if (object == null) {
}
Hash Tables
var table:Object = new Object ();
table["key"] = 100;
trace (table.hasOwnProperty ("key"));
for (var key:Object in table) {
trace (key + " = " + table[key]);
}
delete table["key"];
var table = new Hash
table.set ("key", 100);
trace (table.exists ("key"));
for (key in table.keys ()) {
trace (key + " = " + table.get (key));
}
table.remove ("key");
Rest Parameters
function test (...params):void {
}
test (1, 2, 3);
function test (params:Array
}
Reflect.makeVarArgs (test) (1, 2, 3);
Reflection
var foo = object["foo"];
bar.apply (this, [ "hi" ]);
var foo = Reflect.field (object, "foo");
Reflect.callMethod (this, bar, [ "hi" ]);
Constants
private const gravity:Number = 9.8;
inline private static var gravity = 9.8;
Function Types
function hello (msg:String):void {
}
var type:Function = hello;
function hello (msg:String):Void {
}
var type:String->Void = hello;
// can also use Dynamic
Getters and Setters
function get x ():Number {
return _x;
}
function set x (value:Number):void {
_x = value;
}
public var x (getX, setX):Float;
function getX ():Float {
return _x;
}
function setX (value:Float):Float {
return _x = value;
}
Read-Only Properties
function get x ():Float {
return _x;
}
public var x (default, null):Float;
// null allows private access
// never would restrict all access
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