iOS：cell自适应高度报错.33333

YouWen[1025:5332657] [LayoutConstraints] Unable to simultaneously satisfy constraints.
    Probably at least one of the constraints in the following list is one you don't want. 
    Try this: 
        (1) look at each constraint and try to figure out which you don't expect; 
        (2) find the code that added the unwanted constraint or constraints and fix it. 
(
    "<NSLayoutConstraint:0x600002c54190 UIButton:0x7fcefc476170'\U767b\U5f55'.height == 46   (active)>",
    "<NSLayoutConstraint:0x600002c54500 V:|-(0)-[UIButton:0x7fcefc476170'\U767b\U5f55']   (active, names: '|':UITableViewCellContentView:0x7fcefc475fe0 )>",
    "<NSLayoutConstraint:0x600002c54550 V:[UIButton:0x7fcefc476170'\U767b\U5f55']-(0)-|   (active, names: '|':UITableViewCellContentView:0x7fcefc475fe0 )>",
    "<NSLayoutConstraint:0x600002c49770 'UIView-Encapsulated-Layout-Height' UITableViewCellContentView:0x7fcefc475fe0.height == 46.3333   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600002c54190 UIButton:0x7fcefc476170'登录'.height == 46   (active)>

cell的subview固定高度自适应，回报多出.333错误
去掉分界线，警告消除
方法一,self.tableView?.separatorStyle = .none
方法二，限制高度heigth>=46