Function findPrevElement

vue.js:13693–13708

(children)

    }
    //找到上一个节点
    function findPrevElement(children) {
        var i = children.length;
        while (i--) {
            if (children[i].type === 1) {
                return children[i]
            } else {//如果是其他节点则删除
                if ("development" !== 'production' && children[i].text !== ' ') {
                    warn$2(
                        "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
                        "will be ignored."
                    );
                }
                children.pop();
            }
        }
    }

    //为if指令添加标记
    function addIfCondition(