How does axisui work?

but linuxcnc error code 'halui.axis.x.plus' does not exist

Ah yes you are missing the entry 'HALUI = halui' in the [HAL]-section of your ini. So add it like this:

After that the halui pins should be available.

By the way ,I use axisui.jog.increment net to halui.joint.0.increment

but linuxcnc is don't exist ,Why

The axisui. pins don't exist until after the axis-gui has been loaded so all your hal code that requires pins from GUIs, like axisui pins, need to be in a postgui.hal file.

1. Create a file in your 'config' folder. For example 'MonoPump_postgui.hal'
2. Copy your line inside 'MonoPump_postgui.hal' : 3. Save 'MonoPump_postgui.hal'
4. Add this line to the [HAL] section in your INI-file:
This line makes sure that MonoPump_postgui.hal is executed after the GUI (ie AXIS in your case) has been loaded.

I will try it ,thank Aciera

my jog is working，but how does my jog is end

but how does my jog is end

Not sure what you mean there. Does the jog movement not end when you release the button?