diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 6cd008a..0126bb1 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -19,5 +19,5 @@
         }
     },
     "initializeCommand": "gdb -ex 'set confirm off' -ex quit",  // 初始化GDB配置
-    "postAttachCommand": "make debug"  // 假设你的Makefile有debug目标
+    "postAttachCommand": "make debug"  
 }
\ No newline at end of file
diff --git a/Makefile b/Makefile
index b22fcf0..2b0643a 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@
 include ./make.h
 
 # 目标和源文件  
-TARGETS  = fork execlp  
+TARGETS  = fork execlp  getSum
 SOURCES  = $(wildcard $(SRC_DIR)/*.c)  # 找到所有的 .c 文件  
 OBJECTS  = $(patsubst $(SRC_DIR)/%.c,%.o,$(SOURCES)) # 将 .c 替换为 .o  
 
@@ -26,6 +26,9 @@ fork: fork.o
 execlp: execlp.o  
 	$(CC) -o execlp execlp.o  
 
+getSum: getSum.o
+	$(CC) -o getSum getSum.o
+
 # 从 .c 文件编译生成 .o 文件  
 %.o: $(SRC_DIR)/%.c  
 	$(CC) $(CFLAGS) $(COMMON_INCLUDE_DIRS) -c $< -o $@  
diff --git a/getSum b/getSum
new file mode 100755
index 0000000..085e52f
Binary files /dev/null and b/getSum differ
diff --git a/src/getSum.c b/src/getSum.c
new file mode 100644
index 0000000..41a00f5
--- /dev/null
+++ b/src/getSum.c
@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+int getSum(void)
+{
+    int sum = 0;
+    for (int i = 1; i <= 100; ++i) {
+        sum += i;
+    }
+    return sum;
+}
+
+int main(void)
+{           
+    printf("%d\n", getSum());
+    return 0;
+}
\ No newline at end of file