Re: [問題] 統計字數時，如何過濾掉空白字元

[klit1987 (不行喔五樓)]

做了兩種方法，原理差不多

第一個:

//版面設置免看--txt_main是輸入區塊
var txt_main:TextField=new TextField();
this.addChild(txt_main);
txt_main.type=TextFieldType.INPUT;
txt_main.width=200;txt_main.height=20;
txt_main.x=100;
txt_main.y=100;

txt_main.border=true;

var txt_true:TextField=new TextField();
this.addChild(txt_true);
txt_true.width=200;txt_true.height=20;
txt_true.x=txt_main.x;
txt_true.y=txt_main.y-txt_main.height-10;
txt_true.border=true;

var txt_total:TextField=new TextField();
this.addChild(txt_total);
txt_total.width=200;txt_total.height=20;
txt_total.x=txt_true.x;
txt_total.y=txt_true.y-txt_true.height-10;
txt_total.border=true;

//從這看就好
this.addEventListener(Event.ENTER_FRAME,checkType);
function checkType(event:Event):void
{
        var str:String=txt_main.text;
        var arr:Array=new Array();
        arr=str.split("");
        var true_total:int=arr.length;
        var match:String=" ";
        for(var i=0;i<arr.length;i++)
        {
                if(match==arr[i])
                {
                        true_total--;
                }
        }
        txt_total.text="目前長度:"+arr.length;
        txt_true.text="實際長度:"+true_total;
}


第二個:

//版面設置免看--txt_main是輸入區塊
var txt_main:TextField=new TextField();
this.addChild(txt_main);
txt_main.type=TextFieldType.INPUT;
txt_main.width=200;txt_main.height=20;
txt_main.x=100;
txt_main.y=100;

txt_main.border=true;

var txt_true:TextField=new TextField();
this.addChild(txt_true);
txt_true.width=200;txt_true.height=20;
txt_true.x=txt_main.x;
txt_true.y=txt_main.y-txt_main.height-10;
txt_true.border=true;

var txt_total:TextField=new TextField();
this.addChild(txt_total);
txt_total.width=200;txt_total.height=20;
txt_total.x=txt_true.x;
txt_total.y=txt_true.y-txt_true.height-10;
txt_total.border=true;

//從這看就好~
txt_main.addEventListener(KeyboardEvent.KEY_DOWN,checkType);
function checkType(event:KeyboardEvent):void
{
                var timer:Timer=new Timer(500,1);
                timer.addEventListener(TimerEvent.TIMER,checkit);
                timer.start();
}
function checkit(event:TimerEvent):void
{
        var str:String=txt_main.text;
        var j:Number=0;
        var count:int=0;
        while(str.indexOf(" ",j)!=-1)
        {
                count++;
                var i:int=str.indexOf(" ",j);
                j=i+1;
        }
        txt_total.text="目前字數:"+txt_main.length;
        txt_true.text="實際字數:"+(txt_main.length-count);

        event.target.removeEventListener(TimerEvent.TIMER,checkit);
}


有問題再問..

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推 cloudfly:感謝klit1987大提供...我會試看看的..Orz
推 cloudfly:我想問一下..因為我是使用flex裡頭的textArea組件讓人輸
→ cloudfly:入文字..我套用的上面的碼解決了按空白鍵不計算字數問題
→ cloudfly:但似乎按ENTER鍵產生的空白.仍然會計算1個字數.
→ cloudfly:我覺得很納悶..這兩者產生的空白不是一樣..但為何ENTER會
→ cloudfly:被計算..而空白鍵產生的空白可以過濾掉
→ cjcat2266:enter字元跟空白字元的keyCode不一樣啊