feat: finish Argument Parsing

.gitignore

@@ -14,3 +14,8 @@ Cargo.lock
 # MSVC Windows builds of rustc generate these, which store debugging information
 *.pdb
 
+
+
+# Added by cargo
+
+/target

Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "rget"
+version = "0.1.0"
+edition = "2021"
+authors = ["Smart SangGe <liangjunyong06@gmail.com>"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = "2.26.0"

src/main.rs

@@ -0,0 +1,18 @@
+extern crate clap;
+
+use clap::{Arg, App};
+
+fn main() {
+    let matches = App::new("Rget")
+        .version("0.1.0")
+        .author("Smart SangGe <liangjunyong06@gmail.com>")
+        .about("wget clone written in Rust")
+        .arg(Arg::with_name("URL")
+                 .required(true)
+                 .takes_value(true)
+                 .index(1)
+                 .help("url to download"))
+        .get_matches();
+    let url = matches.value_of("URL").unwrap();
+    println!("{}", url);
+}