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Date
Dec. 26th, 2024
 
2024年 11月 26日

Post: iOS 小知识: 生成随机浮点数

iOS 小知识: 生成随机浮点数

Published 12:10 Oct 14, 2014.

Created by @ezra. Categorized in #Programming, and tagged as #iOS.

Source format: Markdown

Table of Content

介绍一些 iOS 小知识。

生成随机浮点数

定义宏 #define ARC4RANDOM_MAX 0x100000000。

使用 arc4random() 来获取 0 ~ 100 的浮点数了: double val = floorf(((double)arc4random() / ARC4RANDOM_MAX) * 100.0f)

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