Rust 语言在最新版本1.80中迎来了重要的稳定支持功能，其中包括对Lazy Statics的支持和在模式匹配中使用开区间的功能。这一更新为开发者提供了更多的灵活性和性能优化手段。
Lazy Statics是一种延迟初始化的全局静态变量，它允许开发者在第一次访问时才初始化全局变量，从而避免了在程序启动时进行不必要的初始化操作，减少了启动时间和内存消耗。这种特性尤其适用于那些在程序运行期间可能不会立即使用的全局静态变量。
在模式匹配中使用开区间是一个新的功能，它使得开发者能够更精确地匹配数值范围，而不需要担心范围边界的错误。例如，之前只能使用闭区间（a..=b）来匹配数值范围，现在可以通过开区间（a..b）或（..b）来更灵活地表达范围。
此外，Rust 1.80还引入了新的lint工具，以帮助检测开区间模式匹配中的潜在错误，进一步提高了代码的健壮性。这些新功能的加入，使得Rust语言在性能和代码简洁性方面得到了进一步提升。
总的来说，Rust 1.80的发布为开发者提供了更多的工具和选项，以优化他们的应用程序性能，并且提高了代码的清晰度和健壮性。随着这些新特性的加入，Rust作为一种系统编程语言，正逐渐成为开发高性能、安全软件的首选。
英语如下：
News Title: “Rust 1.80 Introduces New Pattern Matching Paradigm with Support for Lazy Statics and Open Interval Enhancements”
Keywords: Rust 1.80, Lazy Statics, Open Interval Support
News Content: The latest version 1.80 of the Rust programming language brings significant stable support features, including enhancements for Lazy Statics and the use of open intervals in pattern matching. This update provides developers with greater flexibility and optimization tools for their code.
Lazy Statics represent global static variables that are initialized on demand, allowing developers to delay initializing global variables until they are first accessed. This avoids unnecessary initialization at program startup, reducing both startup time and memory consumption. This feature is particularly beneficial for global statics that may not be immediately used during program execution.
The introduction of open interval support in pattern matching is a new feature that enables developers to match numeric ranges more precisely without worrying about range boundary errors. For instance, while previously only closed intervals (a..=b) could be used to match a range of values, the new functionality allows for more flexible expression of ranges using open intervals (a..b) or (..b).
Moreover, Rust 1.80 introduces a new lint tool to help detect potential errors in open interval pattern matching, further enhancing code robustness. The addition of these new features enhances the performance and conciseness of Rust code.
In summary, the release of Rust 1.80 provides developers with more tools and options to optimize their application performance and improve the clarity and robustness of their code. With these new features, Rust, as a systems programming language, is increasingly becoming the preferred choice for developing high-performance, secure software.
【来源】https://mp.weixin.qq.com/s/zkNdujL6tKrEFPVxwpi8hQ
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