rosrun [package_name] [node_name]
例如 rosrun pub_sub_test sub_string.cpp(错误) 节点名后去掉.cpp
rosrun pub_sub_test sub_string.py (正确)
rosrun [package_name] [node_name]
例如 rosrun pub_sub_test sub_string.cpp(错误) 节点名后去掉.cpp
rosrun pub_sub_test sub_string.py (正确)