sprite剪切

CCSprite *sheet =(CCSprite *)[self getChildByTag:SELECT_SP+t];

if (sheet) {

[sheet setTextureRect:CGRectMake(0, 0, 150, _duan_y)];

}

sheet.visible = YES;

sheet.anchorPoint = ccp(0.5,1);

sheet.position=ccp(500,660);