pub const INFINITY: f32 = f32::INFINITY; // +Inff32👎Deprecating in a future Rust version: replaced by the 
INFINITY associated constant on f32Expand description
无限 (∞)。
请改用 f32::INFINITY。
Examples
// 弃用的方式
let inf = std::f32::INFINITY;
// 预期的方式
let inf = f32::INFINITY;