The maximum value of a float is about 3.4*1038, which isn't large enough for some things you might wish to represent, such as the number of electrons in the universe.
float的最大值约为 3.4*1038。这个值还不足以表示某些东西，比如宇宙中的电子数目。
The maximum value of a float is about 3.4*1038, which isn't large enough for some things you might wish to represent, such as the number of electrons in the universe.
float的最大值约为 3.4*1038。这个值还不足以表示某些东西，比如宇宙中的电子数目。
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