两个lineedit设置焦点和数字输入

[{"title":"（ 13 个子文件 30KB ） 两个lineedit设置焦点和数字输入","children":[{"title":"test","children":[{"title":"ui_test.h <span style='color:#111;'> 3.81KB </span>","children":null,"spread":false},{"title":"test.cpp <span style='color:#111;'> 1.99KB </span>","children":null,"spread":false},{"title":"moc_test.cpp <span style='color:#111;'> 2.30KB </span>","children":null,"spread":false},{"title":"main.o <span style='color:#111;'> 2.30KB </span>","children":null,"spread":false},{"title":"moc_test.o <span style='color:#111;'> 6.54KB </span>","children":null,"spread":false},{"title":"test.pro <span style='color:#111;'> 308B </span>","children":null,"spread":false},{"title":"test.h <span style='color:#111;'> 408B </span>","children":null,"spread":false},{"title":"main.cpp <span style='color:#111;'> 453B </span>","children":null,"spread":false},{"title":"test <span style='color:#111;'> 31.59KB </span>","children":null,"spread":false},{"title":"Makefile <span style='color:#111;'> 8.15KB </span>","children":null,"spread":false},{"title":"test.pro.user <span style='color:#111;'> 20.84KB </span>","children":null,"spread":false},{"title":"test.o <span style='color:#111;'> 15.05KB </span>","children":null,"spread":false},{"title":"test.ui <span style='color:#111;'> 3.44KB </span>","children":null,"spread":false}],"spread":false}],"spread":true}]