<chrono>

std::chrono::microseconds

typedef duration < /* see rep below */, micro > microseconds;
Duration in microseconds
Instantiation of duration to represent microseconds.

It is a typedef of an instantiation of duration with the following member types

成员类型

成员类型定义描述
repA signed integral type of at least 55 bitsRepresentation type
periodmicro (i.e., ratio<1,1000000>)A ratio of 1:1million with seconds

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