Frequency 特性代表跟踪观察到的项目计数的类型。 HashMapFrequency 类型是一个由 HashMap 支持的频率计数器。

用法

将 frequency 和 frequency-hashmap 添加到你的 Cargo.toml

[dependencies]
frequency = "^1.0.0"
frequency-hashmap = "^1.0.0"

导入 Frequency 和 HashMapFrequency

extern crate frequency;
extern crate frequency_hashmap;

use frequency::Frequency;
use frequency_hashmap::HashMapFrequency;

lib.rs:

Frequency 特性代表跟踪观察到的项目计数的类型。 HashMapFrequency 类型是一个由 HashMap 支持的频率计数器。

用法

将 frequency 和 frequency-hashmap 添加到你的 Cargo.toml

[dependencies]
frequency = "^1.0.0"
frequency-hashmap = "^1.0.0"

导入 Frequency 和 HashMapFrequency

extern crate frequency;
extern crate frequency_hashmap;

use frequency::Frequency;
use frequency_hashmap::HashMapFrequency;