v-for循环中如何改变点击当前按钮的背景色，再次点击恢复原来的背景色

Answer 1

65106

21184

19963

09562

65197

95539

10765

97310

06640

75520

49965

44076

53280

97310

20994

98644

08862

43973

10643

53087

43966

98421

21853

85411

21752

06600

20754

22884

09562

73307

10743

97741

09642

09842

28563

11874

64088

32184

61774

61085

43296

39845

75188

45118

54076

31852

28864

23885

20084

87317

64428

53097

09531

10654

42296

87410

08841

06640

40974

20752

33074

97418

30986

32996

27741

Answer 2

https://www.imooc.com/wenda/detail/338948

https://www.imooc.com/wenda/detail/335356

https://www.imooc.com/wenda/detail/335705

https://www.imooc.com/wenda/detail/342147

https://www.imooc.com/wenda/detail/345250

https://www.imooc.com/wenda/detail/345424

https://www.imooc.com/wenda/detail/341512

https://www.imooc.com/wenda/detail/340896

https://www.imooc.com/wenda/detail/355070

https://www.imooc.com/wenda/detail/338503

https://www.imooc.com/wenda/detail/345942

https://www.imooc.com/wenda/detail/345850

https://www.imooc.com/wenda/detail/345850

https://www.imooc.com/wenda/detail/345864

https://www.imooc.com/wenda/detail/333042

https://www.imooc.com/wenda/detail/349597

https://www.imooc.com/wenda/detail/354638

https://www.imooc.com/wenda/detail/341413

https://www.imooc.com/wenda/detail/335353

https://www.imooc.com/wenda/detail/333025

https://www.imooc.com/wenda/detail/336516

https://www.imooc.com/wenda/detail/338716

https://www.imooc.com/wenda/detail/340171

https://www.imooc.com/wenda/detail/335440

https://www.imooc.com/wenda/detail/341084

https://www.imooc.com/wenda/detail/350819

https://www.imooc.com/wenda/detail/353507

https://www.imooc.com/wenda/detail/338313

https://www.imooc.com/wenda/detail/348461

https://www.imooc.com/wenda/detail/349610

https://www.imooc.com/wenda/detail/335085

https://www.imooc.com/wenda/detail/344898

https://www.imooc.com/wenda/detail/339553

https://www.imooc.com/wenda/detail/337442

https://www.imooc.com/wenda/detail/332471

https://www.imooc.com/wenda/detail/332655

https://www.imooc.com/wenda/detail/343357

https://www.imooc.com/wenda/detail/350721

https://www.imooc.com/wenda/detail/336265

https://www.imooc.com/wenda/detail/353253

https://www.imooc.com/wenda/detail/338728

https://www.imooc.com/wenda/detail/348501

https://www.imooc.com/wenda/detail/335432

https://www.imooc.com/wenda/detail/345423

https://www.imooc.com/wenda/detail/356363

https://www.imooc.com/wenda/detail/347908

https://www.imooc.com/wenda/detail/336636

https://www.imooc.com/wenda/detail/333540

https://www.imooc.com/wenda/detail/344671

https://www.imooc.com/wenda/detail/346343

https://www.imooc.com/wenda/detail/346611

https://www.imooc.com/wenda/detail/333293

https://www.imooc.com/wenda/detail/338581

https://www.imooc.com/wenda/detail/353167

https://www.imooc.com/wenda/detail/342322

https://www.imooc.com/wenda/detail/332692

https://www.imooc.com/wenda/detail/340635

https://www.imooc.com/wenda/detail/335181

https://www.imooc.com/wenda/detail/332909

https://www.imooc.com/wenda/detail/353096

https://www.imooc.com/wenda/detail/354539

https://www.imooc.com/wenda/detail/352018

https://www.imooc.com/wenda/detail/346511

https://www.imooc.com/wenda/detail/333886

https://www.imooc.com/wenda/detail/332034

https://www.imooc.com/wenda/detail/346721

https://www.imooc.com/wenda/detail/344966

https://www.imooc.com/wenda/detail/341268

https://www.imooc.com/wenda/detail/347315

https://www.imooc.com/wenda/detail/345270

https://www.imooc.com/wenda/detail/342487

https://www.imooc.com/wenda/detail/337345

https://www.imooc.com/wenda/detail/342162

https://www.imooc.com/wenda/detail/350797

https://www.imooc.com/wenda/detail/345841

https://www.imooc.com/wenda/detail/334688

https://www.imooc.com/wenda/detail/351082

https://www.imooc.com/wenda/detail/339276

https://www.imooc.com/wenda/detail/334558

https://www.imooc.com/wenda/detail/337784

Answer 3

https://www.imooc.com/wenda/detail/338948

https://www.imooc.com/wenda/detail/335356

https://www.imooc.com/wenda/detail/335705

https://www.imooc.com/wenda/detail/342147

https://www.imooc.com/wenda/detail/345250

https://www.imooc.com/wenda/detail/345424

https://www.imooc.com/wenda/detail/341512

https://www.imooc.com/wenda/detail/340896

https://www.imooc.com/wenda/detail/355070

https://www.imooc.com/wenda/detail/338503

https://www.imooc.com/wenda/detail/345942

https://www.imooc.com/wenda/detail/345850

https://www.imooc.com/wenda/detail/345850

https://www.imooc.com/wenda/detail/345864

https://www.imooc.com/wenda/detail/333042

https://www.imooc.com/wenda/detail/349597

https://www.imooc.com/wenda/detail/354638

https://www.imooc.com/wenda/detail/341413

https://www.imooc.com/wenda/detail/335353

https://www.imooc.com/wenda/detail/333025

https://www.imooc.com/wenda/detail/336516

https://www.imooc.com/wenda/detail/338716

https://www.imooc.com/wenda/detail/340171

https://www.imooc.com/wenda/detail/335440

https://www.imooc.com/wenda/detail/341084

https://www.imooc.com/wenda/detail/350819

https://www.imooc.com/wenda/detail/353507

https://www.imooc.com/wenda/detail/338313

https://www.imooc.com/wenda/detail/348461

https://www.imooc.com/wenda/detail/349610

https://www.imooc.com/wenda/detail/335085

https://www.imooc.com/wenda/detail/344898

https://www.imooc.com/wenda/detail/339553

https://www.imooc.com/wenda/detail/337442

https://www.imooc.com/wenda/detail/332471

https://www.imooc.com/wenda/detail/332655

https://www.imooc.com/wenda/detail/343357

https://www.imooc.com/wenda/detail/350721

https://www.imooc.com/wenda/detail/336265

https://www.imooc.com/wenda/detail/353253

https://www.imooc.com/wenda/detail/338728

https://www.imooc.com/wenda/detail/348501

https://www.imooc.com/wenda/detail/335432

https://www.imooc.com/wenda/detail/345423

https://www.imooc.com/wenda/detail/356363

https://www.imooc.com/wenda/detail/347908

https://www.imooc.com/wenda/detail/336636

https://www.imooc.com/wenda/detail/333540

https://www.imooc.com/wenda/detail/344671

https://www.imooc.com/wenda/detail/346343

https://www.imooc.com/wenda/detail/346611

https://www.imooc.com/wenda/detail/333293

https://www.imooc.com/wenda/detail/338581

https://www.imooc.com/wenda/detail/353167

https://www.imooc.com/wenda/detail/342322

https://www.imooc.com/wenda/detail/332692

https://www.imooc.com/wenda/detail/340635

https://www.imooc.com/wenda/detail/335181

https://www.imooc.com/wenda/detail/332909

https://www.imooc.com/wenda/detail/353096

https://www.imooc.com/wenda/detail/354539

https://www.imooc.com/wenda/detail/352018

https://www.imooc.com/wenda/detail/346511

https://www.imooc.com/wenda/detail/333886

https://www.imooc.com/wenda/detail/332034

https://www.imooc.com/wenda/detail/346721

https://www.imooc.com/wenda/detail/344966

https://www.imooc.com/wenda/detail/341268

https://www.imooc.com/wenda/detail/347315

https://www.imooc.com/wenda/detail/345270

https://www.imooc.com/wenda/detail/342487

https://www.imooc.com/wenda/detail/337345

https://www.imooc.com/wenda/detail/342162

https://www.imooc.com/wenda/detail/350797

https://www.imooc.com/wenda/detail/345841

https://www.imooc.com/wenda/detail/334688

https://www.imooc.com/wenda/detail/351082

https://www.imooc.com/wenda/detail/339276

https://www.imooc.com/wenda/detail/334558

https://www.imooc.com/wenda/detail/337784

Answer 4

https://www.imooc.com/wenda/detail/338948

https://www.imooc.com/wenda/detail/335356

https://www.imooc.com/wenda/detail/335705

https://www.imooc.com/wenda/detail/342147

https://www.imooc.com/wenda/detail/345250

https://www.imooc.com/wenda/detail/345424

https://www.imooc.com/wenda/detail/341512

https://www.imooc.com/wenda/detail/340896

https://www.imooc.com/wenda/detail/355070

https://www.imooc.com/wenda/detail/338503

https://www.imooc.com/wenda/detail/345942

https://www.imooc.com/wenda/detail/345850

https://www.imooc.com/wenda/detail/345850

https://www.imooc.com/wenda/detail/345864

https://www.imooc.com/wenda/detail/333042

https://www.imooc.com/wenda/detail/349597

https://www.imooc.com/wenda/detail/354638

https://www.imooc.com/wenda/detail/341413

https://www.imooc.com/wenda/detail/335353

https://www.imooc.com/wenda/detail/333025

https://www.imooc.com/wenda/detail/336516

https://www.imooc.com/wenda/detail/338716

https://www.imooc.com/wenda/detail/340171

https://www.imooc.com/wenda/detail/335440

https://www.imooc.com/wenda/detail/341084

https://www.imooc.com/wenda/detail/350819

https://www.imooc.com/wenda/detail/353507

https://www.imooc.com/wenda/detail/338313

https://www.imooc.com/wenda/detail/348461

https://www.imooc.com/wenda/detail/349610

https://www.imooc.com/wenda/detail/335085

https://www.imooc.com/wenda/detail/344898

https://www.imooc.com/wenda/detail/339553

https://www.imooc.com/wenda/detail/337442

https://www.imooc.com/wenda/detail/332471

https://www.imooc.com/wenda/detail/332655

https://www.imooc.com/wenda/detail/343357

https://www.imooc.com/wenda/detail/350721

https://www.imooc.com/wenda/detail/336265

https://www.imooc.com/wenda/detail/353253

https://www.imooc.com/wenda/detail/338728

https://www.imooc.com/wenda/detail/348501

https://www.imooc.com/wenda/detail/335432

https://www.imooc.com/wenda/detail/345423

https://www.imooc.com/wenda/detail/356363

https://www.imooc.com/wenda/detail/347908

https://www.imooc.com/wenda/detail/336636

https://www.imooc.com/wenda/detail/333540

https://www.imooc.com/wenda/detail/344671

https://www.imooc.com/wenda/detail/346343

https://www.imooc.com/wenda/detail/346611

https://www.imooc.com/wenda/detail/333293

https://www.imooc.com/wenda/detail/338581

https://www.imooc.com/wenda/detail/353167

https://www.imooc.com/wenda/detail/342322

https://www.imooc.com/wenda/detail/332692

https://www.imooc.com/wenda/detail/340635

https://www.imooc.com/wenda/detail/335181

https://www.imooc.com/wenda/detail/332909

https://www.imooc.com/wenda/detail/353096

https://www.imooc.com/wenda/detail/354539

https://www.imooc.com/wenda/detail/352018

https://www.imooc.com/wenda/detail/346511

https://www.imooc.com/wenda/detail/333886

https://www.imooc.com/wenda/detail/332034

https://www.imooc.com/wenda/detail/346721

https://www.imooc.com/wenda/detail/344966

https://www.imooc.com/wenda/detail/341268

https://www.imooc.com/wenda/detail/347315

https://www.imooc.com/wenda/detail/345270

https://www.imooc.com/wenda/detail/342487

https://www.imooc.com/wenda/detail/337345

https://www.imooc.com/wenda/detail/342162

https://www.imooc.com/wenda/detail/350797

https://www.imooc.com/wenda/detail/345841

https://www.imooc.com/wenda/detail/334688

https://www.imooc.com/wenda/detail/351082

https://www.imooc.com/wenda/detail/339276

https://www.imooc.com/wenda/detail/334558

https://www.imooc.com/wenda/detail/337784

Answer 5

直接加个判断就行了，进入点击事件 ： true fasle变量=！变量 判断赋值

Answer 6

绑定事件，点击取反