分支4完成，提交完成的题目

code/code.vcxproj

@@ -142,17 +142,20 @@
     <ClInclude Include="include\1_ContainsNearbyDuplicate.h" />
     <ClInclude Include="include\2_ExcelSheetColumnTitle.h" />
     <ClInclude Include="include\3_IsUgly.h" />
+    <ClInclude Include="include\4_IsPalindrome.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="src\1_ContainsNearbyDuplicate.cpp" />
     <ClCompile Include="src\2_ExcelSheetColumnTitle.cpp" />
     <ClCompile Include="src\3_IsUgly.cpp" />
+    <ClCompile Include="src\4_IsPalindrome.cpp" />
     <ClCompile Include="src\main.cpp" />
   </ItemGroup>
   <ItemGroup>
     <None Include="config\1_ContainsNearbyDuplicate.ini" />
     <None Include="config\2_ExcelSheetColumnTiTle.ini" />
     <None Include="config\3_IsUgly.ini" />
+    <None Include="config\4_IsPalindrome.ini" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

code/code.vcxproj.filters

@@ -24,6 +24,9 @@
     <ClInclude Include="include\3_IsUgly.h">
       <Filter>头文件</Filter>
     </ClInclude>
+    <ClInclude Include="include\4_IsPalindrome.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="src\1_ContainsNearbyDuplicate.cpp">
@@ -38,6 +41,9 @@
     <ClCompile Include="src\3_IsUgly.cpp">
       <Filter>源文件</Filter>
     </ClCompile>
+    <ClCompile Include="src\4_IsPalindrome.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="config\1_ContainsNearbyDuplicate.ini">
@@ -49,5 +55,8 @@
     <None Include="config\3_IsUgly.ini">
       <Filter>资源文件</Filter>
     </None>
+    <None Include="config\4_IsPalindrome.ini">
+      <Filter>资源文件</Filter>
+    </None>
   </ItemGroup>
 </Project>

code/config/4_IsPalindrome.ini

@@ -0,0 +1,30 @@
+[Test1]
+Na=121
+nExpect=1
+[Test2]
+Na=123321
+nExpect=1
+[Test3]
+Na=214748367
+nExpect=0
+[Test4]
+Na=1212
+nExpect=0
+[Test5]
+Na=20
+nExpect=0
+[Test6]
+Na=-214748368
+nExpect=0
+[Test7]
+Na=-123321
+nExpect=0
+[Test8]
+Na=14333341
+nExpect=1
+[Test9]
+Na=3333333
+nExpect=1
+[Test10]
+Na=123454321
+nExpect=1

code/include/4_IsPalindrome.h

@@ -0,0 +1,2 @@
+#pragma once
+bool IsPalindrome(int x);

code/src/4_IsPalindrome.cpp

@@ -0,0 +1,26 @@
+#include "../include/4_IsPalindrome.h"
+//题目：判断一个数是否为回文数
+//思路：对传进来的数先知道是几位数，再循环%10，再/10,取到每位上的数字，再逆序*10相加，
+//		得到翻转后的数,最后再和原数作对比。
+
+bool IsPalindrome(int x)
+{
+	if (x < 0)				//如果入参为负数，则不是回文数，返回false
+		return false;
+	int x_Count = 1;		//定义一个count用来统计传进来的数是几位数
+	int x_Coln1 = x;		//把传进来的数拷贝一份，因为后面对要对x做除法运算
+	long long x_Turn = 0;	//用来保存翻转后的值，考虑int翻转后溢出问题
+	while ((x / 10) != 0) {//通过循环来获得入参是几位数
+		x_Count++;
+		x = x / 10;
+	}
+	x = x_Coln1;						//保存原数，后面还要用到
+	for (int i = 0; i < x_Count; i++) { //把逆置后的数存放到x_Turn中（保存的是正数）
+		int temp = x % 10;				//取整数的个位数字
+		x_Turn = x_Turn * 10 + temp;	//取到的数字逆序相加
+		x = x / 10;						//除10，继续取个位数字
+	}
+	if (x_Turn == x_Coln1)				//判断翻转后的数和原数是否相等
+		return true;
+	return false;
+}

test/pch.h

@@ -17,6 +17,7 @@
 #include"../code/include/1_ContainsNearbyDuplicate.h"
 #include"../code/include/2_ExcelSheetColumnTitle.h"
 #include"../code/include/3_IsUgly.h"
+#include"../code/include/4_IsPalindrome.h"
 
 
 int CalcCount(int n, char(*str)[10], const char* FileName);

test/test.cpp

@@ -5,6 +5,7 @@ using namespace Microsoft::VisualStudio::CppUnitTestFramework;
 #define FileName_1  "../code/config/1_ContainsNearbyDuplicate.ini"
 #define FileName_2  "../code/config/2_ExcelSheetColumnTiTle.ini"
 #define FileName_3  "../code/config/3_IsUgly.ini"
+#define FileName_4  "../code/config/4_IsPalindrome.ini"
 
 
 namespace test1
@@ -65,4 +66,22 @@ namespace test3
 		}
 	};
 }
+namespace test4
+{
+	TEST_CLASS(UnitTest_4)
+	{
+		TEST_METHOD(TestMethode1)
+		{
+			char Section_Name[100][10] = { 0 };
+			int  Section_Count = CalcCount(100, Section_Name, FileName_4);
+			CString Na, nExpect;
+			for (int i = 0; i < Section_Count; i++) {
+				GetPrivateProfileString(Section_Name[i], "Na", " ", Na.GetBuffer(20), 20, FileName_4);
+				GetPrivateProfileString(Section_Name[i], "nExpect", " ", nExpect.GetBuffer(20), 20, FileName_4);
+				bool nReal = IsPalindrome(_ttoi(Na));
+				Assert::AreEqual(nReal, CstrToBool(nExpect));
+			}
+		}
+	};
+}