自定义形状，

demo/Views/Home/HomeView.swift

@@ -26,7 +26,6 @@ struct HomeView: View {
         }
         .frame(maxWidth: .infinity)
         .padding(.horizontal, 12)
-        .background(Color.gray.opacity(0.2))
     }
 
     var Search: some View {
@@ -48,17 +47,17 @@ struct HomeView: View {
             Image(systemName: "bell")
                 .resizable()
                 .frame(width: 24, height: 24)
-                .overlay(alignment: .topTrailing) {
+                .overlay(
                     Circle()
                         .fill(Color.red.opacity(0.8))
                         .frame(width: 20, height: 20)
-                        .overlay {
+                        .overlay(
                             Text("20")
                                 .foregroundColor(Color.white)
                                 .font(.system(size: 12))
-                        }
+                        )
                         .offset(x: 8, y: -10)
-                }
+                )
 
             Spacer()
         }
@@ -243,14 +242,14 @@ struct HomeView: View {
                     Image("Images/LaunchScreen")
                         .resizable(resizingMode: /*@START_MENU_TOKEN@*/ .stretch/*@END_MENU_TOKEN@*/)
                         .frame(maxWidth: 120, maxHeight: 150)
-                        .overlay(alignment: .bottom) {
+                        .overlay(
                             Text("剩余100")
                                 .font(.system(size: 14))
                                 .foregroundColor(Color.white)
                                 .frame(maxWidth: .infinity)
                                 .padding(.vertical, 4)
                                 .background(Color.red.opacity(0.5))
-                        }
+                        )
                         .cornerRadius(8)
                     VStack {
                         Text("石床垫：阿特伍德黑暗就故事（有的人说啥就是啥呢有的人说啥就是啥呢有的人说啥就是啥呢）")