diff --git a/.vs/Project1C++/FileContentIndex/4e6d9117-c899-47e4-a314-74ee305048f1.vsidx b/.vs/Project1C++/FileContentIndex/4e6d9117-c899-47e4-a314-74ee305048f1.vsidx
deleted file mode 100644
index ef8b141..0000000
Binary files a/.vs/Project1C++/FileContentIndex/4e6d9117-c899-47e4-a314-74ee305048f1.vsidx and /dev/null differ
diff --git a/.vs/Project1C++/FileContentIndex/cbf2bef4-1f3d-496f-a06e-796e70d3a677.vsidx b/.vs/Project1C++/FileContentIndex/cbf2bef4-1f3d-496f-a06e-796e70d3a677.vsidx
new file mode 100644
index 0000000..b6c9e8a
Binary files /dev/null and b/.vs/Project1C++/FileContentIndex/cbf2bef4-1f3d-496f-a06e-796e70d3a677.vsidx differ
diff --git a/.vs/Project1C++/v17/.suo b/.vs/Project1C++/v17/.suo
index 5967fd3..214cf7e 100644
Binary files a/.vs/Project1C++/v17/.suo and b/.vs/Project1C++/v17/.suo differ
diff --git a/.vs/Project1C++/v17/DocumentLayout.json b/.vs/Project1C++/v17/DocumentLayout.json
index 2c1ad6f..2703483 100644
--- a/.vs/Project1C++/v17/DocumentLayout.json
+++ b/.vs/Project1C++/v17/DocumentLayout.json
@@ -5,34 +5,6 @@
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       "RelativeMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|solutionrelative:test.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}"
-    },
-    {
-      "AbsoluteMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|D:\\project\\Project1C\u002B\u002B\\\u77E9\u9635\u53D6\u6570\u7B80.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}",
-      "RelativeMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|solutionrelative:\u77E9\u9635\u53D6\u6570\u7B80.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}"
-    },
-    {
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-      "RelativeMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|solutionrelative:\u9AD8\u7CBE\u52A0.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}"
-    },
-    {
-      "AbsoluteMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|D:\\project\\Project1C\u002B\u002B\\\u77E9\u9635\u53D6\u6570\u8BB0\u5FC6.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}",
-      "RelativeMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|solutionrelative:\u77E9\u9635\u53D6\u6570\u8BB0\u5FC6.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}"
-    },
-    {
-      "AbsoluteMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|D:\\project\\Project1C\u002B\u002B\\B3849 [GESP\u6837\u9898 \u4E09\u7EA7] \u8FDB\u5236\u8F6C\u6362.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}",
-      "RelativeMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|solutionrelative:B3849 [GESP\u6837\u9898 \u4E09\u7EA7] \u8FDB\u5236\u8F6C\u6362.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}"
-    },
-    {
-      "AbsoluteMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|D:\\project\\Project1C\u002B\u002B\\\u8BA1\u7B97\u5E73\u65B9\u548C.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}",
-      "RelativeMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|solutionrelative:\u8BA1\u7B97\u5E73\u65B9\u548C.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}"
-    },
-    {
-      "AbsoluteMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|D:\\project\\Project1C\u002B\u002B\\\u5408\u6570\u5206\u89E3.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}",
-      "RelativeMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|solutionrelative:\u5408\u6570\u5206\u89E3.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}"
-    },
-    {
-      "AbsoluteMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|D:\\project\\Project1C\u002B\u002B\\\u91D1\u5E01\u95EE\u9898.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}",
-      "RelativeMoniker": "D:0:0:{653F23DB-4E65-4232-A488-E9A53268A0A6}|Project1C\u002B\u002B.vcxproj|solutionrelative:\u91D1\u5E01\u95EE\u9898.cpp||{D0E1A5C6-B359-4E41-9B60-3365922C2A22}"
     }
   ],
   "DocumentGroupContainers": [
@@ -42,59 +14,11 @@
       "DocumentGroups": [
         {
           "DockedWidth": 200,
-          "SelectedChildIndex": 4,
+          "SelectedChildIndex": 1,
           "Children": [
             {
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-              "DocumentIndex": 4,
-              "Title": "B3849 [GESP\u6837\u9898 \u4E09\u7EA7] \u8FDB\u5236\u8F6C\u6362.cpp",
-              "DocumentMoniker": "D:\\project\\Project1C\u002B\u002B\\B3849 [GESP\u6837\u9898 \u4E09\u7EA7] \u8FDB\u5236\u8F6C\u6362.cpp",
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-              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000677|",
-              "WhenOpened": "2024-07-12T06:18:25.662Z",
-              "EditorCaption": ""
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-              "DocumentIndex": 3,
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-              "DocumentMoniker": "D:\\project\\Project1C\u002B\u002B\\\u77E9\u9635\u53D6\u6570\u8BB0\u5FC6.cpp",
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-              "WhenOpened": "2024-07-12T06:17:30.167Z",
-              "EditorCaption": ""
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-            {
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-              "DocumentIndex": 2,
-              "Title": "\u9AD8\u7CBE\u52A0.cpp",
-              "DocumentMoniker": "D:\\project\\Project1C\u002B\u002B\\\u9AD8\u7CBE\u52A0.cpp",
-              "RelativeDocumentMoniker": "\u9AD8\u7CBE\u52A0.cpp",
-              "ToolTip": "D:\\project\\Project1C\u002B\u002B\\\u9AD8\u7CBE\u52A0.cpp",
-              "RelativeToolTip": "\u9AD8\u7CBE\u52A0.cpp",
-              "ViewState": "AQIAAB4AAAAAAAAAAAAAAAAAAAAAAAAA",
-              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000677|",
-              "WhenOpened": "2024-07-11T08:33:39.228Z",
-              "EditorCaption": ""
-            },
-            {
-              "$type": "Document",
-              "DocumentIndex": 1,
-              "Title": "\u77E9\u9635\u53D6\u6570\u7B80.cpp",
-              "DocumentMoniker": "D:\\project\\Project1C\u002B\u002B\\\u77E9\u9635\u53D6\u6570\u7B80.cpp",
-              "RelativeDocumentMoniker": "\u77E9\u9635\u53D6\u6570\u7B80.cpp",
-              "ToolTip": "D:\\project\\Project1C\u002B\u002B\\\u77E9\u9635\u53D6\u6570\u7B80.cpp",
-              "RelativeToolTip": "\u77E9\u9635\u53D6\u6570\u7B80.cpp",
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-              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000677|",
-              "WhenOpened": "2024-07-11T08:33:33.062Z",
-              "EditorCaption": ""
+              "$type": "Bookmark",
+              "Name": "ST:0:0:{1c4feeaa-4718-4aa9-859d-94ce25d182ba}"
             },
             {
               "$type": "Document",
@@ -104,46 +28,10 @@
               "RelativeDocumentMoniker": "test.cpp",
               "ToolTip": "D:\\project\\Project1C\u002B\u002B\\test.cpp",
               "RelativeToolTip": "test.cpp",
-              "ViewState": "AQIAAAMAAAAAAAAAAAAAAAsAAAATAAAA",
+              "ViewState": "AQIAAAAAAAAAAAAAAAAAAAIAAAAMAAAA",
               "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000677|",
-              "WhenOpened": "2024-07-11T07:08:06.846Z",
+              "WhenOpened": "2024-07-13T06:40:05.402Z",
               "EditorCaption": ""
-            },
-            {
-              "$type": "Document",
-              "DocumentIndex": 5,
-              "Title": "\u8BA1\u7B97\u5E73\u65B9\u548C.cpp",
-              "DocumentMoniker": "D:\\project\\Project1C\u002B\u002B\\\u8BA1\u7B97\u5E73\u65B9\u548C.cpp",
-              "RelativeDocumentMoniker": "\u8BA1\u7B97\u5E73\u65B9\u548C.cpp",
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-            },
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-              "DocumentIndex": 7,
-              "Title": "\u91D1\u5E01\u95EE\u9898.cpp",
-              "DocumentMoniker": "D:\\project\\Project1C\u002B\u002B\\\u91D1\u5E01\u95EE\u9898.cpp",
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diff --git a/.vs/Project1C++/v17/Preview/Browse.VC.db b/.vs/Project1C++/v17/Preview/Browse.VC.db
index 0871d8e..2e9a377 100644
Binary files a/.vs/Project1C++/v17/Preview/Browse.VC.db and b/.vs/Project1C++/v17/Preview/Browse.VC.db differ
diff --git a/test.cpp b/test.cpp
index d5b414b..4d66e18 100644
--- a/test.cpp
+++ b/test.cpp
@@ -1,17 +1,4 @@
 #include <iostream>//函数 cout输出 cin输入
-// input输入  output输出  stream流
-using namespace std;//标准命名空间
+using namespace std;
 int main() {
-	//int 整型   short  long   long long
-	//float 浮点型  double
-	//char 字符
-	//string 字符串
-	//cin>>n;
-	//cout<<n;
-	//+ - * / %
-	// > < >= <= == !=
-	//&& || !
-	double a = 10.0;
-	double b = 3.0;
-	cout << a / b;
 }
\ No newline at end of file