鑽石OTC跑分系統開發

  function processOnce (el) { //第9460行 解析v-once屬性ide

  var once$$1 = getAndRemoveAttr(el, 'v-once'); //獲取v-once屬性函數

  if (once$$1 != null) { //若是存在,則給el增長一個once屬性,值爲true字符串

  el.once = true;get

  }io

  }function

  function genElement (el, state) { //第10139行 生成函數字符串sed

  if (el.staticRoot && !el.staticProcessed) {渲染

  return genStatic(el, state)static

  } else if (el.once && !el.onceProcessed) { //若是有設置了once屬性,則調用genOnce()函數process

  return genOnce(el, state)

  } else if (el.for && !el.forProcessed) {

  //

  }

  function genOnce (el, state) { //第10179行 渲染v-once指令

  el.onceProcessed = true;

  if (el.if && !el.ifProcessed) { //若是有定義了v-if指令

  return genIf(el, state)

  } else if (el.staticInFor) { //若是是在v-for環境下

  var key = '';

  var parent = el.parent;

  while (parent) {

  if (parent.for) {

  key = parent.key;

  break

  }

  parent = parent.parent;

  }

  if (!key) {

  "development" !== 'production' && state.warn(

  "v-once can only be used inside v-for that is keyed. "

  );

  return genElement(el, state)

  }

  return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")

  } else {

  return genStatic(el, state) //不然直接調用genStatic()函數

  }

  }

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