增加一个将RGB颜色拆解成分量色单元的函数。

color-module/src/lib.rs

@@ -8,6 +8,14 @@ use wasm_bindgen::prelude::*;
 
 mod errors;
 
+#[wasm_bindgen]
+pub fn represent_rgb(color: &str) -> Result<Box<[u8]>, errors::ColorError> {
+    let srgb = Srgb::from_str(color)
+        .map_err(|_| errors::ColorError::UnrecogniazedRGB(color.to_string()))?
+        .into_format::<u8>();
+    Ok(Box::new([srgb.red, srgb.green, srgb.blue]))
+}
+
 #[wasm_bindgen]
 pub fn represent_hsl(color: &str) -> Result<Box<[f32]>, errors::ColorError> {
     let origin_color = Srgb::from_str(color)