没有修改，随便写写。

netrain_flutter_app/lib/jishuaishuai/student.dart

+
+import 'dart:ffi';
+import 'dart:html';
+
+import 'package:flutter/material.dart';
+
+class textDemo  extends StatelessWidget {
+  // const ({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+    width: double.infinity,
+    color: Colors.blue,
+    child:Text (
+      "文本，我是个文本 woeijaoijfioasjfajfaojfoiasjfidsjfajf危机哦娃儿哦i啊就哦发i家阿减肥哦i阿减肥里挖掘佛i挖掘安抚啊发生放假啊师傅就撒就啊说",
+      maxLines: 10,
+      overflow: TextOverflow.ellipsis,
+      textDirection: TextDirection.ltr,
+      textAlign: TextAlign.center,
+      style: TextStyle(
+        color: Colors.orange,
+      ),
+    ),
+
+    );
+  }
+
+}
+
+
+class buttonDemo  extends StatelessWidget {
+
+  // const ({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+      return Column(
+      children: [
+        RaisedButton(
+            onPressed: (){},
+            child:Text("漂浮按钮")
+        ),
+        FlatButton(
+            onPressed: (){},
+            child: Text("扁平按钮")
+        ),
+        FlatButton.icon(
+            onPressed: (){},
+            icon: Icon(Icons.outbound),
+            label: Text("按钮"),
+          color: Colors.black,
+          textColor: Colors.white,
+        ),
+        OutlineButton(onPressed: (){},
+          child: Text("边框按钮"),
+        ),
+        IconButton(
+            onPressed: (){},
+            icon: Icon(Icons.access_alarm),
+        )
+      ],
+      );
+  }
+}
+
+
+
+
+class imageiconDemo extends StatelessWidget {
+  // const ({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+
+    return Column(
+      children: [
+        Icon(Icons.add),
+        IconButton(onPressed: (){}, icon: Icon(Icons.home)),
+        Image.network("http://www.baidu.com/baidu.php?url=a00000KEJeCxDFezEVpFL9_MH8XSqbHklw_maA_-0O-JAG-gv2I-uvEAQqh-teALqpO_NZN1EbyMj5iOpf3Z1ZREUPx5_1lniEkZj6mijxFoM8VqoaPcH0KOxWwCyPbmri5Hlwk-A8u4pBUbGLW2x882fEua1eOAEbBWTdTqxEMA631a3yr2qBWOz88FPpAVsair-sXakr4y6eguntj86fZCDab3.DR_aOQZsYpb2glyIiUr2s1f_uQr1Fv20.U1Yk0ZDqVSXS_0KY5IissIpS_QMU8pi110KGUHY1PWT0Iybq0ZKGujYk0APGujY1rjc0mhbqn10k0AuY5H00TA6qn0KET1Ys0AFL5H00UMfqn0K1XWY0ThIYmyTqn0K8IM0qna3snj0snj0sn0K-ThTqn0KYTh7buHYdrH0knHm0mhwGujdKnWT1rj0sPHnLPYm1fHndrRmdrH64rjDkwjT3PHcsPsKbmvPb5fK9TdqGuAnqujcVmhwbX0KzIjY3P1T0TgKGujYs0Z7Wpyfqn0K9mWYsg100TZ0qn0KVIZ0qn0KbuAqs5H00ThCqn0KYIgnqnHT1P1DYnWD3P1nYP1RznWDYnW60mynqnfKsUWYs0ZK9I7qhUA7M5H00ugwGujYVnfK9TLKWm1Ys0ZNspy4Wm1Ys0AuWIgfqn0K9uAu_myTqnfKLuMFEUHY0mMfqnfKzug7Y5HDvnWRLnW64rHTvrjm0Tv-b5Hbsn16Lm179n1F9nHRvrj60ULfqn0KETMKY5H0WnaPDw-fWnansc10Wna3sc10WwDuRc10WwDuR0AVG5H00UgfqnWfkn0KVm1Ys0AdWgvuzUvYqn0Kbmy4dmhNxTAk9Uh-bT1Ys0A7bTgbqVSXS_0K9uZ7Y5H00pgPWUjYs0Z7VIjYs0A7bgLPEIgFWuHYsczn0mLFW5HRkrjcL",
+        fit: BoxFit.fitWidth
+        ),
+        Image.asset("ic_home_normal.png")
+      ],
+    );
+    return Container(
+
+    );
+  }
+}
+
+
+