feat: init commit

.gitignore

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+Cargo.lock
+target/
+.idea/

Cargo.toml

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+[package]
+name = "alibabacloud-openapi-signature"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+hmac-sha256 = "1.1.7"
+hmac-sm3 = "0.1.0"

src/main.rs

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+fn main() {
+    println!("Hello, world!");
+}