cocos 得到子节点cc.utils:findChildren 或 getChildByName

今天逛cocos论坛的时候 发现有这样一个接口
findChildren
还有一个findChild没有在3.10或者自己的项目中找到使用 应该是与getChildByName用法一样

findChildren查了半天用途
他可以获得所有同一名称的子节点
看示例

--复制24个节点 设置得到的坐标 并添加到容器层里面 这个容器层作为可克隆的节点
function PXUISkill:initPageItem()
    local function addItemToPanel(i)
        local item = self.m_Image_DownItem:clone()
        --item:show()
        item:setTag(i)
        local tbPoint = self.tbPanelSPos[i]
        item:setPosition(tbPoint.x, tbPoint.y)
        self.m_Panel_SkillPvItem:addChild(item)
    end

    for i = 1, Msd.DOWN_SKI_NUM do
        addItemToPanel(i)
    end

    --得到全部的克隆节点
    local findChildren = cc.utils:findChildren(self.m_Panel_SkillPvItem, "m_Image_DownItem")
    dump(findChildren, "findChildren = ")
    local a = self.m_Panel_SkillPvItem:getChildByName("m_Image_DownItem")
    dump(a, "a = ")
end

输出

[LUA-print]  dump from: [string ".\app/game_ui/PXUISkill/PXUISkill.lua"]:262: in
 function 'initPageItem'
[LUA-print]  - "findChildren = " = {
[LUA-print]  -     1  = userdata: 0x0acdfec0
[LUA-print]  -     2  = userdata: 0x07c4b788
[LUA-print]  -     3  = userdata: 0x075b1500
[LUA-print]  -     4  = userdata: 0x0e13cc60
[LUA-print]  -     5  = userdata: 0x0a7c30c0
[LUA-print]  -     6  = userdata: 0x07626a68
[LUA-print]  -     7  = userdata: 0x0e134740
[LUA-print]  -     8  = userdata: 0x0759aff0
[LUA-print]  -     9  = userdata: 0x0e7322d8
[LUA-print]  -     10 = userdata: 0x0a7b7858
[LUA-print]  -     11 = userdata: 0x0a7b7878
[LUA-print]  -     12 = userdata: 0x07f70768
[LUA-print]  -     13 = userdata: 0x07f70788
[LUA-print]  -     14 = userdata: 0x0e59fd78
[LUA-print]  -     15 = userdata: 0x0e59fd98
[LUA-print]  -     16 = userdata: 0x0e107180
[LUA-print]  -     17 = userdata: 0x0e1071a0
[LUA-print]  -     18 = userdata: 0x0e587ce8
[LUA-print]  -     19 = userdata: 0x0e587d08
[LUA-print]  -     20 = userdata: 0x0acd6c30
[LUA-print]  -     21 = userdata: 0x0acd6c50
[LUA-print]  -     22 = userdata: 0x0acdeb58
[LUA-print]  -     23 = userdata: 0x0acdeb78
[LUA-print]  -     24 = userdata: 0x0af04018
[LUA-print]  - }
[LUA-print]  dump from: [string ".\app/game_ui/PXUISkill/PXUISkill.lua"]:264: in
 function 'initPageItem'
[LUA-print]  - "a = " = userdata: 0x0acdfec0

可见
cc.utils:findChildren可获得全部子节点
也可以#结果 得到有多少个这个名字的节点