$_nowclass=$empire->fetch1("select * from {$dbtbpre}enewsclass where classid='$r[classid]'");
$listtemp='
';
C++的std::move关键字有什么作用?怎么用? c++ move semantics
std::move的作用是将左值转换为右
std::move的作用是将左值转换为右
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