qcustomplot鼠标点击后在坐标轴显示值

[{"title":"（ 12 个子文件 238KB ） qcustomplot鼠标点击后在坐标轴显示值","children":[{"title":"axisTest","children":[{"title":"qcustomplot.h <span style='color:#111;'> 260.67KB </span>","children":null,"spread":false},{"title":"axisTest.pro <span style='color:#111;'> 510B </span>","children":null,"spread":false},{"title":"axistag.h <span style='color:#111;'> 841B </span>","children":null,"spread":false},{"title":"axisTest.pro.user <span style='color:#111;'> 18.27KB </span>","children":null,"spread":false},{"title":"tagaxis.h <span style='color:#111;'> 864B </span>","children":null,"spread":false},{"title":"qcustomplot.cpp <span style='color:#111;'> 1.07MB </span>","children":null,"spread":false},{"title":"tagaxis.cpp <span style='color:#111;'> 4.11KB </span>","children":null,"spread":false},{"title":"main.cpp <span style='color:#111;'> 183B </span>","children":null,"spread":false},{"title":"mainwindow.ui <span style='color:#111;'> 654B </span>","children":null,"spread":false},{"title":"axistag.cpp <span style='color:#111;'> 3.86KB </span>","children":null,"spread":false},{"title":"mainwindow.cpp <span style='color:#111;'> 5.02KB </span>","children":null,"spread":false},{"title":"mainwindow.h <span style='color:#111;'> 606B </span>","children":null,"spread":false}],"spread":false}],"spread":true}]