"首次提交"

workspace_learn/add/adder1/.gitignore

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+/target

workspace_learn/add/adder1/Cargo.toml

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+[package]
+name = "adder1"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rand = "0.8.5"
+add-one = { path = "../add-one" }

workspace_learn/add/adder1/src/main.rs

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+use add_one;
+fn main() {
+    println!("Hello, world!");
+    println!("2 + 3 = {}", add_one::add(2, 3));
+}