switch(uni.getSystemInfoSync().platform){
                    case 'android':
                       console.log('运行Android上')
                       this.inputBottom2 = e.detail.height * 2 + 30
                       break;
                    case 'ios':
                       console.log('运行iOS上')
                       this.inputBottom2 = e.detail.height + 25
                       break;
                    default:
                       console.log('运行在开发者工具上')
                       break;
                }