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Re:我是一个C++初学者,请问5e9在c++里用什么类型来存

Posted by xiqimingren at 2012-05-15 19:44:28 on Problem 1095
In Reply To:Re:我是一个C++初学者,请问5e9在c++里用什么类型来存 Posted by:lianzhouxiaowu at 2009-08-18 18:26:45
> 这个简单,下面这个语句可以告诉你答案
> cout <<sizeof(float)<<endl<<sizeof(double)<<endl<<sizeof(5e9)<<endl;
5乘以10的9次幂

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