設置圓角
clipsToBounds Boolean true
layer.cornerRadius Number 2
設置邊框和邊框色
layer.borderWidth Number 1
layer.borderColorFromUIColor Color ***
設置placeholder的顏色
_placeholderLabel.textColor Color White Color
clipsToBounds Boolean true
layer.cornerRadius Number 2
layer.borderWidth Number 1
layer.borderColorFromUIColor Color ***
_placeholderLabel.textColor Color White Color