diff --git a/TypeScript/README.md b/TypeScript/README.md
index aa8c1cb..f0e47b5 100644
--- a/TypeScript/README.md
+++ b/TypeScript/README.md
@@ -171,4 +171,10 @@ $ ts-node test/test4.ts
         }
     }
 
-```
\ No newline at end of file
+```
+
+## 其他帮助
+
+在mysql中int类型最大长度是10位数字，由于本算法默认生成的是15位，最短也是11位，所以在mysql中需要使用bigint数据类型
+
+
diff --git a/TypeScript/test/test5.ts b/TypeScript/test/test5.ts
new file mode 100644
index 0000000..5877aca
--- /dev/null
+++ b/TypeScript/test/test5.ts
@@ -0,0 +1,18 @@
+import { snowflakeIdv1 } from '../snowflakeIdv1'
+
+const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
+
+let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 10 })
+// for (let i = 0; i < 10; i++) {
+//     let id1 = gen1.NextId()
+//     console.log(`${i} ID:${id1} ${typeof id1} 长度：${id1.toString().length}`)
+// }
+
+console.time("Test Run")
+const HSet = new Set()
+for (let index = 0; index < 500000; index++) {
+    HSet.add(gen1.NextId())
+}
+console.timeEnd("Test Run")
+console.log([...HSet.values()].join("\n"))
+console.log(HSet.size)
\ No newline at end of file