小编met*_*Ro_的帖子

我正在使用IfFileExists函数,但我认为它只包含跳转后的第一行.我怎样才能做类似C的事情,比如{..../.../....}？!

IfFileExists "$PROGRAMFILES\InduSoft Web Studio v7.0\Bin\RunStartUp.exe" StartUpExists PastStartUpExists
      StartUpExists:
        StrCpy $Text "$PROGRAMFILES\InduSoft Web Studio v7.0\Bin\RunStartUp.exe"

      PastStartUpExists:
        nsDialogs::Create 1018
        Pop $Dialog

        nsDialogs::SelectFileDialog open "$PROGRAMFILES\InduSoft Web Studio v7.0\Bin\RunStartUp.exe" "*.exe"

        Pop $Text

        ${NSD_CreateText} 0 13u 100% -13u $Text
        Pop $Text

        ${NSD_CreateText} 0
        ${NSD_GetText} $Text $0

        CreateShortCut "$SMPROGRAMS\Advanlab\Website.lnk" "$INSTDIR\${PRODUCT_NAME}.url"
        CreateShortCut "$SMPROGRAMS\Advanlab\Uninstall.lnk" "$INSTDIR\uninst.exe"
        CreateShortCut "$SMPROGRAMS\Advanlab\Advanlab.lnk" "$0"
        CreateShortCut "$DESKTOP\Advanlab.lnk" "$0"

如果我有以下表格:

Product
+----+------+
| id | name |
+----+------+
|  1 | box  |
|  2 | car  |
|  3 | ball |
+----+------+

Color
+----+-------+
| id | name  |
+----+-------+
|  1 | red   |
|  2 | green |
|  3 | blue  |
+----+-------+

Size
+----+--------+
| id | number |
+----+--------+
|  1 |      1 |
|  2 |      5 |
|  3 |     10 |
+----+--------+

Color Options (#product | #color)
+---------+-------+
| …

我正在使用以下代码来获取触摸事件，绘制路径并将其存储在 ArrayList 上，并且它正在工作。

@Override
public boolean onTouchEvent(MotionEvent event) {
    float touchX = event.getX();
    float touchY = event.getY();

    switch (event.getAction()) {
    case MotionEvent.ACTION_DOWN:
        drawPath.moveTo(touchX, touchY);
        break;
    case MotionEvent.ACTION_MOVE:
        drawPath.lineTo(touchX, touchY);
        drawCanvas.drawPath(drawPath, drawPaint);
        paths.add(drawPath);
        drawPath.reset();
        drawPath.moveTo(touchX, touchY);
        break;
    case MotionEvent.ACTION_UP:
        drawCanvas.drawPath(drawPath, drawPaint);
        paths.add(drawPath);
        drawPath.reset();
        break;
    default:
        return false;
    }

    invalidate();
    return true;
}

在我想再次绘制它但颜色不同之后它不起作用。如果我创建路径，如评论，它的工作原理：s

public void printPath(){

    Path testePath = new Path();
    //testePath.moveTo(0, 0);
    //testePath.lineTo(300, 300);

    Paint testePaint = new Paint();
    testePaint.setColor(0xFF00FF00);
    testePaint.setAntiAlias(true);
    testePaint.setStrokeWidth(brushSize);
    testePaint.setStyle(Paint.Style.STROKE);
    testePaint.setStrokeJoin(Paint.Join.ROUND);
    testePaint.setStrokeCap(Paint.Cap.ROUND);

    testePath = paths.remove(0);
    drawCanvas.drawPath(testePath, testePaint); …