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鈥?strong>鈥嬩笁澶у瓨鏀句綅缃鐓ц〃鈥?/strong>鈥?/p>

涓句釜鐪熷疄妗堜緥锛氱敤鎴蜂俊鎭睍绀虹粍浠?/p>

javascript澶嶅埗
// 閿欒绀鸿寖锛?/span>
export default {
  created() {
    this.userAge = 25 // 杩欑鍙橀噺涓嶄細瑙﹀彂瑙嗗浘鏇存柊锛?/span>
  }
}

// 姝ｇ‘濮垮娍
export default {
  data() {
    return {
      userAge: 25 // 蹇呴』鏀惧湪data閲?/span>
    }
  }
}

浜屻€佸懡鍚嶈鑼冭鑰佸懡锛?/h3>

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1. 鎷掔粷鍗曞瓧姣嶅懡鍚嶏紙闄ら潪鏄痜or寰幆閲岀殑涓存椂鍙橀噺锛?/li>
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javascript澶嶅埗
// 鐑傚懡鍚?/span>
let d = 10 // 楝肩煡閬揹鏄暐
let f = false // 杩欎釜f瑕佽〃杈句粈涔堬紵

// 濂藉懡鍚?/span>
const MAX_RETRY_COUNT = 3 
const hasPermission = true

---

涓夈€佸搷搴斿紡澶辨晥鍜嬪洖浜嬶紵

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2. 鐩存帴淇敼瀵硅薄灞炴€э紙obj.newProp=value锛?/li>
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4. 鍦╲-for閲岀敤index褰搆ey
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javascript澶嶅埗
// 鏁扮粍鏇存柊瑕佽繖鏍?/span>
this.$set(this.list, index, newValue)
// 鎴栬€?/span>
this.list.splice(index, 1, newValue)

// 瀵硅薄鏂板灞炴€у繀椤荤敤set
this.$set(this.obj, 'newKey', 'value')

鍥涖€乸rops鍜宒ata鍌诲偦鍒嗕笉娓咃紵

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鈥?strong>鈥嬪吀鍨嬮敊璇渚嬧€?/strong>鈥?/p>

javascript澶嶅埗
export default {
  props: ['initialCount'],
  data() {
    return {
      count: this.initialCount // 杩欐牱鐖剁粍浠舵洿鏂版椂count涓嶄細鍙橈紒
    }
  }
}

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