diff --git a/src/senior/Exception/RainException.kt b/src/senior/Exception/RainException.kt
new file mode 100644
index 0000000..92662ea
--- /dev/null
+++ b/src/senior/Exception/RainException.kt
@@ -0,0 +1,9 @@
+package senior.Exception
+
+class RainException(override val message: String?) : Throwable() {
+}
+
+fun main(args: Array<String>) {
+    var name: String? = null
+    name?.length ?: throw RainException("rain自定义异常")
+}
\ No newline at end of file