Initial commit

test/aggregation/list.dart

@@ -0,0 +1,38 @@
+void main() {
+  foo4();
+}
+
+void foo1() {
+  List<int> numList = [1, 9, 9, 4, 3, 2, 8];
+  int second = numList[1];
+  print(second);
+  numList[3] = 6;
+  print(numList);
+}
+
+void foo2() {
+  List<int> numList = [1, 9, 9, 4, 3, 2, 8];
+  numList.add(10);
+  numList.insert(0, 49);
+  print(numList);
+}
+
+void foo3() {
+  List<int> numList = [1, 9, 9, 4, 3, 2, 8];
+  numList.removeAt(2);
+  numList.remove(3);
+  numList.removeLast();
+  print(numList);
+}
+
+void foo4() {
+  List<int> numList = [1, 9, 9, 4,];
+  for (int i = 0; i < numList.length; i++) {
+    int value = numList[i];
+    print("索引:$i, 元素值:$value");
+  }
+
+  for(int value in numList){
+    print("元素值:$value");
+  }
+}