小编Thi*_*ran的帖子

我目前使用 npm@8.7.0，每次运行任何 npm 命令时都会出现此警告

npm WARN config init.author.email Use `--init-author-email` instead.
npm WARN config init.author.name Use `--init-author-name` instead.
npm WARN config init.license Use `--init-license` instead.

有谁知道如何删除这些警告，我的全局 .npmrc 仅设置了上述设置

我对 C++ 相当陌生，当我在构造函数和析构函数的行为中徘徊时，我发现了这个问题：

#include <iostream>

struct Student {
    std::string a;
    ~Student() {
        std::cout << "Destructor called\n";
    }
} S;

int main() {
    std::cout << "Before assigning to S\n";
    S = {""};
    std::cout << "After assigning to S\n";
}

当我编译上面的代码g++并运行它时，它会打印：

Before assigning to S
Destructor called
After assigning to S
Destructor called

但是当我更改std::string a;为 时const char *a;，它会打印：

Before assigning to S
After assigning to S
Destructor called

谁能解释为什么这一变化使析构函数少运行一次？

当我运行此查询时：

MATCH (n:test) with n limit 100
WITH DISTINCT n, keys(n) AS allKeys
UNWIND allKeys AS key
with n, 
    CASE
        WHEN key STARTS WITH 'prop.title' THEN {column: 'title', value: collect(n[key])}
        WHEN key STARTS WITH 'prop.keywords' THEN {column: 'keywords', value: collect(n[key])}
    END AS data
with n, data, collect(data.value) as values
RETURN n.id, apoc.map.fromPairs(COLLECT([data.column, values]))

此查询的目的是查找具有给定前缀的所有属性，并将它们的值分组到带有 apoc 的对象中。示例结果如下所示：

当 Cypher 给我这个警告时，我的问题开始了：This feature is deprecated and will be removed in future versions.带有状态代码Neo.ClientNotification.Statement.FeatureDeprecationWarning 然后我尝试通过将 the 添加key到WITH关键字来修复查询，如下所示：WITH …