diff --git a/.gitignore b/.gitignore
index e566a52..d96f1cc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -185,3 +185,5 @@ Alogrithm/Alogrithm/Debug/22_Rotate.obj
 Alogrithm/UnitTest/Debug/UnitTest.tlog/link.15328.delete.1.tlog
 *.tlog
 *.obj
+*.testlog
+*.coverage
diff --git a/Alogrithm/.vs/Alogrithm/v16/.suo b/Alogrithm/.vs/Alogrithm/v16/.suo
index f8ee011..3c63209 100644
Binary files a/Alogrithm/.vs/Alogrithm/v16/.suo and b/Alogrithm/.vs/Alogrithm/v16/.suo differ
diff --git a/Alogrithm/Alogrithm/Alogrithm.vcxproj b/Alogrithm/Alogrithm/Alogrithm.vcxproj
index 06841ac..92b69b2 100644
--- a/Alogrithm/Alogrithm/Alogrithm.vcxproj
+++ b/Alogrithm/Alogrithm/Alogrithm.vcxproj
@@ -148,6 +148,7 @@
     <ClCompile Include="src\14_SingleNumber.cpp" />
     <ClCompile Include="src\15_WordPattern.cpp" />
     <ClCompile Include="src\16_ReverseBits.cpp" />
+    <ClCompile Include="src\17_WordBreak.cpp" />
     <ClCompile Include="src\18_PlusOne.cpp" />
     <ClCompile Include="src\19_MySqrt.cpp" />
     <ClCompile Include="src\1_ContainsNearbyDuplicate.cpp" />
@@ -172,6 +173,7 @@
     <ClInclude Include="include\14_SingleNumber.h" />
     <ClInclude Include="include\15_WordPattern.h" />
     <ClInclude Include="include\16_ReverseBits.h" />
+    <ClInclude Include="include\17_WordBreak.h" />
     <ClInclude Include="include\18_PlusOne.h" />
     <ClInclude Include="include\19_MySqrt.h" />
     <ClInclude Include="include\1_ContainsNearbyDuplicate.h" />
@@ -195,6 +197,7 @@
     <None Include="config\14_SingleNumber.ini" />
     <None Include="config\15_WordPattern.ini" />
     <None Include="config\16_ReverseBits.ini" />
+    <None Include="config\17_WordBreak.ini" />
     <None Include="config\18_PlusOne.ini" />
     <None Include="config\19_MySqrt.ini" />
     <None Include="config\1_ContainsNearbyDuplicate.ini" />
diff --git a/Alogrithm/Alogrithm/Alogrithm.vcxproj.filters b/Alogrithm/Alogrithm/Alogrithm.vcxproj.filters
index 468f922..a09d990 100644
--- a/Alogrithm/Alogrithm/Alogrithm.vcxproj.filters
+++ b/Alogrithm/Alogrithm/Alogrithm.vcxproj.filters
@@ -90,6 +90,9 @@
     <ClCompile Include="src\22_Rotate.cpp">
       <Filter>源文件\src</Filter>
     </ClCompile>
+    <ClCompile Include="src\17_WordBreak.cpp">
+      <Filter>源文件\src</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="include\2_ExcelSheetColumnTitle.h">
@@ -155,6 +158,9 @@
     <ClInclude Include="include\22_Rotate.h">
       <Filter>头文件\include</Filter>
     </ClInclude>
+    <ClInclude Include="include\17_WordBreak.h">
+      <Filter>头文件\include</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="config\3_bool IsUgly.ini">
@@ -220,5 +226,8 @@
     <None Include="config\22_Rotate.ini">
       <Filter>资源文件\config</Filter>
     </None>
+    <None Include="config\17_WordBreak.ini">
+      <Filter>资源文件\config</Filter>
+    </None>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/Alogrithm/Alogrithm/config/17_WordBreak.ini b/Alogrithm/Alogrithm/config/17_WordBreak.ini
index a68ed95..9e2e29d 100644
--- a/Alogrithm/Alogrithm/config/17_WordBreak.ini
+++ b/Alogrithm/Alogrithm/config/17_WordBreak.ini
@@ -13,4 +13,20 @@ Output=1
 [Test4]
 Input1=catsanddog
 Input2=cats,and,dog
-Output=1
\ No newline at end of file
+Output=1
+[Test5]
+Input1=aaaaaaa
+Input2=aaa,aaaa
+Output=1
+[Test6]
+Input1=aaaaaaa
+Input2=aaa,aaa
+Output=0
+[Test7]
+Input1=leetcode
+Input2=leet,code
+Output=1
+[Test8]
+Input1=
+Input2=
+Output=0
\ No newline at end of file
diff --git a/Alogrithm/UnitTest/UnitTest.cpp b/Alogrithm/UnitTest/UnitTest.cpp
index 36f6e1d..a193300 100644
--- a/Alogrithm/UnitTest/UnitTest.cpp
+++ b/Alogrithm/UnitTest/UnitTest.cpp
@@ -324,20 +324,20 @@ namespace UnitTest
 		{
 			char Section_Name[100][10] = { 0 };
 			int  Section_Count = CalcCount(100, Section_Name, FileName_17);
-			CString Input1, Input2,Output;
+			CString Input1, Input2, Output;
 			char Str_char[1024] = { 0 };
-			char *WordDic[100];
+			char* WordDic[100];
 			for (int i = 0; i < Section_Count; i++) {
 				GetPrivateProfileString(Section_Name[i], "Input1", " ", Input1.GetBuffer(200), 200, FileName_17);
 				GetPrivateProfileString(Section_Name[i], "Input2", " ", Input2.GetBuffer(500), 500, FileName_17);
-				GetPrivateProfileString(Section_Name[i], "Output", " ", Output.GetBuffer(20), 20, FileName_17);		
+				GetPrivateProfileString(Section_Name[i], "Output", " ", Output.GetBuffer(20), 20, FileName_17);
 				strcpy(Str_char, Input1);
 				int Wordic_count = str_device3(Input2, WordDic);
 				bool nReal = WordBreak(Str_char, WordDic, Wordic_count);
 				Assert::AreEqual(nReal, CstrToBool(Output));
 			}
 		}
-	}
+	};
 	TEST_CLASS(UnitTest_18)
 	{
 		TEST_METHOD(TestMethode1)
diff --git a/Alogrithm/UnitTest/UnitTest.vcxproj b/Alogrithm/UnitTest/UnitTest.vcxproj
index b1ba7a6..d9f9aff 100644
--- a/Alogrithm/UnitTest/UnitTest.vcxproj
+++ b/Alogrithm/UnitTest/UnitTest.vcxproj
@@ -103,7 +103,7 @@
       <SubSystem>Windows</SubSystem>
       <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <GenerateDebugInformation>DebugFull</GenerateDebugInformation>
-      <AdditionalDependencies>../Alogrithm/Debug/1_ContainsNearbyDuplicate.obj;../Alogrithm/Debug/2_ExcelSheetColumnTitle.obj;../Alogrithm/Debug/3_bool IsUgly.obj;../Alogrithm/Debug/4_IsPalindrome.obj;../Alogrithm/Debug/5_MinDepth.obj;../Alogrithm/Debug/6_ContainsDuplicate.obj;../Alogrithm/Debug/7_MaxDepth.obj;../Alogrithm/Debug/8_HammingWeight.obj;../Alogrithm/Debug/9_AddBinary.obj;../Alogrithm/Debug/10_BinaryTreePaths.obj;../Alogrithm/Debug/11_CanWinNim.obj;../Alogrithm/Debug/12_IsValid.obj;../Alogrithm/Debug/13_MyAtoi.obj;../Alogrithm/Debug/14_SingleNumber.obj;../Alogrithm/Debug/15_WordPattern.obj;../Alogrithm/Debug/16_ReverseBits.obj;../Alogrithm/Debug/18_PlusOne.obj;../Alogrithm/Debug/19_MySqrt.obj;../Alogrithm/Debug/20_MoveZeroes.obj;../Alogrithm/Debug/21_Reverse.obj;../Alogrithm/Debug/22_Rotate.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>../Alogrithm/Debug/1_ContainsNearbyDuplicate.obj;../Alogrithm/Debug/2_ExcelSheetColumnTitle.obj;../Alogrithm/Debug/3_bool IsUgly.obj;../Alogrithm/Debug/4_IsPalindrome.obj;../Alogrithm/Debug/5_MinDepth.obj;../Alogrithm/Debug/6_ContainsDuplicate.obj;../Alogrithm/Debug/7_MaxDepth.obj;../Alogrithm/Debug/8_HammingWeight.obj;../Alogrithm/Debug/9_AddBinary.obj;../Alogrithm/Debug/10_BinaryTreePaths.obj;../Alogrithm/Debug/11_CanWinNim.obj;../Alogrithm/Debug/12_IsValid.obj;../Alogrithm/Debug/13_MyAtoi.obj;../Alogrithm/Debug/14_SingleNumber.obj;../Alogrithm/Debug/15_WordPattern.obj;../Alogrithm/Debug/16_ReverseBits.obj;../Alogrithm/Debug/17_WordBreak.obj;../Alogrithm/Debug/18_PlusOne.obj;../Alogrithm/Debug/19_MySqrt.obj;../Alogrithm/Debug/20_MoveZeroes.obj;../Alogrithm/Debug/21_Reverse.obj;../Alogrithm/Debug/22_Rotate.obj;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">