commit a6547752961670029952937008ee79418f166928
Author: jiale.yao <25950955@qq.com>
Date:   Mon Aug 18 22:42:15 2025 +0800

    init

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..151a620
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*.o
+*.a
\ No newline at end of file
diff --git a/app b/app
new file mode 100755
index 0000000..0171248
Binary files /dev/null and b/app differ
diff --git a/app.c b/app.c
new file mode 100644
index 0000000..3ce7874
--- /dev/null
+++ b/app.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include "math/base.h"
+
+int main() {
+    // 测试加法
+    printf("5 + 3 = %d\n", add(5, 3));
+
+    // 测试减法
+    printf("10 - 7 = %d\n", subtract(10, 7));
+
+    // 测试乘法
+    printf("4 * 6 = %d\n", multiply(4, 6));
+
+    // 测试正常除法
+    printf("20 / 4 = %d\n", divide(20, 4));
+
+    // 测试除零保护
+    printf("8 / 0 = %d\n", divide(8, 0));
+
+    return 0;
+}
diff --git a/math/base.c b/math/base.c
new file mode 100644
index 0000000..542f343
--- /dev/null
+++ b/math/base.c
@@ -0,0 +1,24 @@
+#include "base.h"
+
+// 加法实现
+int add(int a, int b) {
+    return a + b;
+}
+
+// 减法实现
+int subtract(int a, int b) {
+    return a - b;
+}
+
+// 乘法实现
+int multiply(int a, int b) {
+    return a * b;
+}
+
+// 除法实现（含除零保护）
+int divide(int a, int b) {
+    if (b == 0) {
+        return 0; // 除数为0时返回0
+    }
+    return a / b;
+}
diff --git a/math/base.h b/math/base.h
new file mode 100644
index 0000000..94b61b5
--- /dev/null
+++ b/math/base.h
@@ -0,0 +1,14 @@
+
+#pragma once
+
+// 加法
+int add(int a, int b);
+
+// 减法
+int subtract(int a, int b);
+
+// 乘法
+int multiply(int a, int b);
+
+// 除法（整数除法），除数为0时返回0
+int divide(int a, int b);
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..1373914
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,2 @@
+#### 编译
+gcc -c math/base.c -o math/base.o && ar rcs math/libmath.a math/base.o
\ No newline at end of file