diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d083d7f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+# 忽略所有Java编译生成的.class文件
+*.class
+
+# 忽略编译输出目录
+bin/
+out/
+target/
\ No newline at end of file