support format

src/main.rs

@@ -47,6 +47,9 @@ fn main() {
         .unwrap_or_else(|| "20".to_owned())
         .parse()
         .expect("second parameter should interger");
+
+    let fmt = std::env::args().nth(3);
+
     let mut stats = IncrementalStats::new();
     for i in 0..iter_num {
         let start = Instant::now();
@@ -54,12 +57,17 @@ fn main() {
             Ok(response) => {
                 if response.status().is_success() {
                     let duration = start.elapsed();
-                    let r = response.bytes().unwrap();
-                    println!(
-                        "第{i}次测试, 访问 {} 花费了 {:?} 毫秒",
-                        url,
-                        duration.as_millis()
-                    );
+                    let _r = response.bytes().unwrap();
+                    if let Some(_name) = fmt.as_ref() {
+                        // println!("{name}, {i},{}", duration.as_millis())
+                    } else {
+                        println!(
+                            "第{i}次测试, 访问 {} 花费了 {:?} 毫秒",
+                            url,
+                            duration.as_millis()
+                        );
+                    }
+
                     // time_rec.push(duration);
                     stats.add(duration.as_millis() as f64);
                 } else {
@@ -75,9 +83,14 @@ fn main() {
             }
         }
     }
-    println!(
-        "平均: {:?}ms, 方差: {:?}",
-        stats.average(),
-        stats.variance()
-    );
+
+    if let Some(name) = fmt.as_ref() {
+        println!("{name}, {},{}", stats.average(), stats.variance())
+    } else {
+        println!(
+            "平均: {:?}ms, 方差: {:?}",
+            stats.average(),
+            stats.variance()
+        );
+    }
 }