小问题语法修改.

问题描述:

小问题语法修改.
if i m not a genius,that means i need to try hard.If i don't try hard,that means i m a idiot.
if i m not a genius,it means i need to try hard.If i don't try hard,it means i m a idiot.
哪句话好点,用it还是that?

语法上都没错.我喜欢that多点.