知止目标，做到明确而高效计划, 明天的计划，这个周的计划，这个月的计划，慢慢试着往长远了规划并实施总结，尽早开始写博客，知识是总结、积累起来的。
##Traps
class CustomParticleTest : public cocos2d::ParticleSystemQuad {
public:
// fail to compile.
// CustomParticleTest(int particleNum = 350) : s_particleNum(particleNum) {}
// this is ok.
CustomParticleTest(int particleNum = 350) {
s_particleNum = particleNum;
}
~CustomParticleTest() {}
static CustomParticleTest * create();
bool initWithTotalParticles(int numberOfParticles);
private:
static int s_particleNum;
};
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
TypeName(const TypeName&); \
void operator=(const TypeName&)
// in class define
class Foo {
public:
Foo(int f);
~Foo();
private:
DISALLOW_COPY_AND_ASSIGN(Foo);
};