NSString *nssHighscore = [NSString stringWithFormat:@"Bounce the ball upwards by tilting or touching where you want it to go. Bounce on the green platforms in order to move up. If you miss a platform and fall, it's game over.%lu",highscore];
Xcodes 询问:'NSinteger'(又名'int')
我是否必须将这个'NSinteger'(又名'int')放在代码上。