numpy.zeros(shape, dtype=float, order='C')
Returnanewarrayofgivenshapeandtype,filledwithzeros.Parameters:shape :intorsequenceofintsShapeofthenewarray,e.g., (2, 3) or 2.dtype ...
ImportError: No module named rospy
Traceback(mostrecentcalllast):File"manage.py",line4,in<module>importrospyImportError:Nomodulenamedrospy解决：source/opt/ros/indigo/setup.bash参考：网址：http...
Could not process inbound connection: Client [/rostopic_18439_1555659423249] wants topic , ROS md5sums do not match
报错如下：[WARN][WallTime:1555659671.447721]Couldnotprocessinboundconnection:Client[/rostopic_18439_1555659423249]wantstopic[/bp_update_feedback]tohaveda...
rostopic demo
发布者#!/usr/bin/envpython2.7#-*-coding:utf-8-*-importrospyfromhdw_driver.msgimportupdate_file_msgdeftalker():pub=rospy.Publisher('hdw_update',update_file_ms...
ros 充电topic
#!/usr/bin/envpython#coding=utf-8importrospyfromstd_msgs.msgimportStringi=0deftalker():globalipub=rospy.Publisher('bp_nav_goal',String,queue_size=10)rospy...
Microsoft SQL Server 17导出xlsx文件时报错：The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine. (System.Data)
导出数据时报错：如果你是导出office2007格式TITLE:SQLServerImportandExportWizard------------------------------Theoperationcouldnotbecompleted.------------------------------ADDITI...
python ros topic demo
发布者：#!/usr/bin/envpython#coding=utf-8importrospyfromstd_msgs.msgimportStringdeftalker(): pub=rospy.Publisher('chatter',String,queue_size=...
python ros 回充demo
#!/usr/bin/envpython#coding=utf-8importrospyfromstd_msgs.msgimportStringi=0deftalker():globalipub=rospy.Publisher('nav_goal',String,queue_size=10)rospy.in...