(2) uvm_blocking*只支持阻塞操作,uvm_nonblocking_*只支持非阻塞操作,uvm_*既支持阻塞操作,又支持非阻塞操作; 2.根据get/put/transport/peek/get_peek,端口可分为uvm_blocking/nonblocking_get_*, uvm_blocking/nonblocking_put*, uvm_blocking/nonblocking_transport*等; 3.根据port/export/imp,端口可分为uvm_...