CCLablettf读取显示xml文件内容显示中文

CCDictionary *strings = CCDictionary::createWithContentsOfFile("tips2.xml");
    const char *hello = ((CCString*)strings->valueForKey("tp1"))->m_sString.c_str();
    CCLabelTTF  *labelHello = CCLabelTTF::create(hello, "fonts/Microsoft YaHei.ttf", 40);
    labelHello->setPosition(ccp(100, 100));
    labelHello->setAnchorPoint(ccp(0.5, 0.5));
    //设置居中对齐
    labelHello->setHorizontalAlignment(kCCTextAlignmentLeft);
    labelHello->setPosition(ccp(267,182));
    //设置显示框大小
    labelHello->setDimensions(CCSizeMake(500, 200));
    labelHello->setColor(ccc3(6, 48, 90));
    pReliveBoard->addChild(labelHello, 1);

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