// 字符串数组写法
const subComponent = {
 props: ['name']
}

// 对象写法
const subComponent = {
 props: {
  name: {
   type: String,
   default: 'Kobe Bryant'
  }
 }
}

/**
 * Ensure all props option syntax are normalized into the
 * Object-based format.（确保将所有props选项语法规范为基于对象的格式）
 */
 // 参数的写法为 flow(https://flow.org/) 语法
function normalizeProps (options: Object, vm: "props": expected an Array or an Object, ` +
   `but got ${toRawType(props)}.`,
   vm
  )
 }
 options.props = res
}

props: ["team"]

props: {
 team:{
  type: null
 }
}

props: {
 name: String,
 height: {
  type: Number,
  default: 198
 }
}

props: {
 name: {
  type: String
 },
 height: {
  type: Number,
  default: 198
 }
}

props: {
 // 第一种写法，直接写类型
 name: String,
 // 第二种写法，写对象
 name: {
  type: String,
  default: 'Kobe Bryant'
 }
}