This count can match the expected number of items or be less (even zero) due to a matching failure, a reading error, or the reach of the end-of-file.

这个数可以匹配项目的预期数量或是少(甚至为零)由于匹配失败，读取错误，或文件结束达到。

youdao

This count can match the expected number of items or be less (even zero) due to a matching failure, a reading error, or the reach of the end-of-file.

这个数可以匹配项目的预期数量或是少(甚至为零)由于匹配失败，读取错误，或文件结束达到。

youdao