stage

problems/p1/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "p1"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+hex = "0.4.3"
+base64 = "0.22.1"

problems/p1/src/main.rs

@@ -0,0 +1,13 @@
+use base64::{Engine as _, engine::general_purpose::STANDARD};
+
+fn hex_to_base64(hex_str: &str) -> String {
+    let bytes = hex::decode(hex_str).expect("解码失败");
+    STANDARD.encode(&bytes)
+}
+
+fn main() {
+    // 从十六进制字符串解码为原始字节
+    let hex_str = "49276d206b696c6c696e6720796f757220627261696e206c696b65206120706f69736f6e6f7573206d757368726f6f6d";
+    let base64_str = hex_to_base64(hex_str);
+    println!("十六进制字符串: {}", base64_str);
+}