Trying to set up a CCLabelTTF with an integer as part of it's string in Cocos2d-X C++

问题

So in Objective-C with Cocos2d, I'd use a NSMutableString with format to put a variable (score) into a string. I'd take that string and use a CCLabel to place it on the screen.

Using Cocos2D-x, I'm having trouble finding a way to get this result. A simple example would be great. Thanks!

回答1:

int score = 35;
float time = 0.03;
char* name = "Michael";
char text[256];
sprintf(text,"name is %s, time is %.2f, score is %d", name, time, score);
CCLabelTTF* label = CCLabelTTF::labelWithString(text,"Arial",20);
this->addChild(label);

回答2:

A simpler solution to set the string at any given time (from here). First define a macro somewhere in your code.

#define ccsf(...) CCString::createWithFormat(__VA_ARGS__)->getCString()

Then you can change the string any time like this:

m_pScoreLabel->setString(ccsf("%d pts", mCurrentScore));

来源：https://stackoverflow.com/questions/12506187/trying-to-set-up-a-cclabelttf-with-an-integer-as-part-of-its-string-in-cocos2d