React Native FlexBox属性

React Native目前支持的FlexBox属性如下（32种），具体怎么使用还需要大家多多练习。接下来我会在使用工程中一一补齐每个属性的用法

• alignItems ('flex-start', 'flex-end', 'center', 'stretch')
• alignSelf enum('auto', 'flex-start', 'flex-end', 'center', 'stretch')
• borderBottomWidth number
• borderLeftWidth number
• borderRightWidth number
• borderTopWidth number
• borderWidth number
• bottom number
• flex number
• flexDirection enum('row', 'column')
• flexWrap enum('wrap', 'nowrap')
• height number
• justifyContent enum('flex-start', 'flex-end', 'center', 'space-between', 'space-around')
• left number
• margin number
• marginBottom number
• marginHorizontal number
• marginLeft number
• marginRight number
• marginTop number
• marginVertical number
• padding number
• paddingBottom number
• paddingHorizontal number
• paddingLeft number
• paddingRight number
• paddingTop number
• paddingVertical number
• position enum('absolute', 'relative')
• right number
• top number
• width number