EOS 合约使用 current_time_point (eosio.cdt v1.6)
From eosio.cdt v1.6 onwards
You have to #include <eosio/system.hpp> and then you can use:
eosio::current_time_point
eosio::current_block_time
to cast from time_point to uint32_t u can use like:
eosio::current_time_point().sec_since_epoch();