[AS3]as3获取中文字符串长度的代码示例(2)

另一种方式：

username.addEventListener(TextEvent.TEXT_INPUT,onTextInput)  
 
 
/* 极酷播放器提示：该方法用于中文是7个汉字，英文是14个字母 */  
                private function onTextInput(e:TextEvent):void{  
                        var count:uint=getTextCount(username.text)  
                        if(count>=14){  
                                e.preventDefault()  
                        }  
                }  
                /* 该方法用于验证中文和字母 */  
                private function getTextCount(text:String):uint{  
                        var count:uint=0;  
                        var pattern:RegExp= /^[\u4E00-\u9FA5\uF900-\uFA2D]+$/  //酷播cuplayer提示：验证中文  
                        for(var i:int=0;i<text.length;i++){  
                                //trace(text.charAt(i))  
                                var str:String=text.charAt(i)  
                                if(pattern.test(str)){  
                                        //trace("中文")  
                                        count+=2  
                                }else{  
                                        //trace("其他")  
                                        count+=1  
                                }  
                        }  
                        return count  
                }