signal PYQT5

signal开发。onNewSelection@resource://devtools/client/inspector/inspector.js:1324:5 emit@resource://devtools/shared/event-emitter.js:178:15 emit@resource://devtools/shared/event-emitter.js:255:5 setNodeFront@resource://devtools/client/framework/selection.js:153:5 onDetached@resource://devtools/client/inspector/inspector.js:1397:5 emit@resource://devtools/shared/event-emitter.js:178:15 emit@resource://devtools/shared/event-emitter.js:255:5 _onMutations@resource://devtools/client/framework/selection.js:105:7 emit@resource://devtools/shared/event-emitter.js:178:15 emit@resource://devtools/shared/event-emitter.js:255:5 WalkerFront<.getMutations</<@resource://devtools/shared/fronts/inspector.j