i want to ask something,i have tried to export my games with node webkit,but that make my game size very big for windows,what happen with it ya?
Node Webkit is a wrapper (containing a browser and half a dozen libraries), so the resulting applications are quite a bit bigger than your typical compiled application written in C/C++ or ASM.
Can't really do anything about it, 'cept for compressing your assets or using something like UPX*. Using UPX or similar products will, however, have an impact on RAM usage.
Alternatively, one could surely fork Node Webkit into something with a smaller footprint.