目录前置准备RN 传值给 iOS方法 1 正常传值给原生方法 2 传递回调函数方法 3 获取 promise 回调方法 4 获取 promise 的同步方式iOS 传值给 RN 端…
目录一、散点图二、柱状图三、直方图四、扇形图总结一、散点图 散点图用两组数据构成多个坐标点,考察坐标点的分布,判断两变量之间是否存在某种关联或总结坐标点的分布模式。 特点:判断变量…
哥德巴赫猜想:大于8的偶数之和都可以被两个素数相加 范围 8 – 10000 思路: 首先不要去管需要什么什么东西实现,所以我们如果知道如何去完成: 大于8的偶数之和都…
目录概览常用验证单向散列加密对称加密非对称加密密钥安全管理接口调试工具在线接口文档扩展小结概览 在设计签名验证的时候,一定要满足以下几点: 可变性:每次的签名必须是不一样的。 时效…
Python 关于a=[[]]*3的反思 之前用python做了一个关于交通大数据的项目,由于之前比较赶进度,故现在会陆续更新对项目代码的一些反思。 1、 由此可以看出,a[0],…
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