diff --git a/TypeScript/README.md b/TypeScript/README.md
index 00e643e..b3dfc77 100644
--- a/TypeScript/README.md
+++ b/TypeScript/README.md
@@ -6,6 +6,10 @@
 
 代码贡献者：zhupengfei（在 bubao 布宝 的JS基础上改版，感谢bubao 布宝）
 
+js Number 类型最大数值：9007199254740992(16位)，
+
+在JS中没有bigint类型，所以建议将ID控制在16位以内，统一使用number类型
+
 
 执行测试代码
 
@@ -22,12 +26,121 @@ import { snowflakeIdv1 } from '../snowflakeIdv1'
 
 const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
 
-const Method = process.env.Method == undefined ? 1 : process.env.Method
-
-let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, Method: Method })
+let gen1 = new snowflakeIdv1({ WorkerId: WorkerId})
 let id1 = gen1.NextId()
 console.log(id1, id1.toString().length)
 
 ```
 
 
+## 示例
+
+```js
+import { snowflakeIdv1 } from '../snowflakeIdv1'
+
+const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
+
+let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 6 })
+for (let i = 0; i < 10; i++) {
+    let id1 = gen1.NextId()
+    console.log(`${i} ID:${id1} 长度：${id1.toString().length}`)
+}
+
+$ ts-node test/test4.ts
+0 ID:234712552579141 长度：15
+1 ID:234712552587333 长度：15
+2 ID:234712552587334 长度：15
+3 ID:234712552587335 长度：15
+4 ID:234712552587336 长度：15
+5 ID:234712552591429 长度：15
+6 ID:234712552591430 长度：15
+7 ID:234712552591431 长度：15
+8 ID:234712552591432 长度：15
+9 ID:234712552591433 长度：15
+
+
+import { snowflakeIdv1 } from '../snowflakeIdv1'
+
+const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
+
+let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 11 })
+for (let i = 0; i < 10; i++) {
+    let id1 = gen1.NextId()
+    console.log(`${i} ID:${id1} ${typeof id1} 长度：${id1.toString().length}`)
+}
+
+
+$ ts-node test/test4.ts
+0 ID:7510958933018629 number 长度：16
+1 ID:7510958933280773 number 长度：16
+2 ID:7510958933280774 number 长度：16
+3 ID:7510958933280775 number 长度：16
+4 ID:7510958933411845 number 长度：16
+5 ID:7510958933411846 number 长度：16
+6 ID:7510958933542917 number 长度：16
+7 ID:7510958933542918 number 长度：16
+8 ID:7510958933542919 number 长度：16
+9 ID:7510958933673989 number 长度：16
+
+import { snowflakeIdv1 } from '../snowflakeIdv1'
+
+const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
+
+let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 12 })
+for (let i = 0; i < 10; i++) {
+    let id1 = gen1.NextId()
+    console.log(`${i} ID:${id1} ${typeof id1} 长度：${id1.toString().length}`)
+}
+
+$ ts-node test/test4.ts
+0 ID:15021931987734533 bigint 长度：17
+1 ID:15021931987996677 bigint 长度：17
+2 ID:15021931987996678 bigint 长度：17
+3 ID:15021931987996679 bigint 长度：17
+4 ID:15021931987996680 bigint 长度：17
+5 ID:15021931988258821 bigint 长度：17
+6 ID:15021931988258822 bigint 长度：17
+7 ID:15021931988258823 bigint 长度：17
+8 ID:15021931988258824 bigint 长度：17
+9 ID:15021931988520965 bigint 长度：17
+
+
+import { snowflakeIdv1 } from '../snowflakeIdv1'
+
+const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
+
+let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 13 })
+for (let i = 0; i < 10; i++) {
+    let id1 = gen1.NextId()
+    console.log(`${i} ID:${id1} ${typeof id1} 长度：${id1.toString().length}`)
+}
+
+$ ts-node test/test4.ts
+0 ID:30043877337997317 bigint 长度：17
+1 ID:30043877338521605 bigint 长度：17
+2 ID:30043877338521606 bigint 长度：17
+3 ID:30043877339045893 bigint 长度：17
+4 ID:30043877339045894 bigint 长度：17
+5 ID:30043877339045895 bigint 长度：17
+6 ID:30043877339045896 bigint 长度：17
+7 ID:30043877339570181 bigint 长度：17
+8 ID:30043877339570182 bigint 长度：17
+9 ID:30043877339570183 bigint 长度：17
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+```
+
diff --git a/TypeScript/snowflakeIdv1.ts b/TypeScript/snowflakeIdv1.ts
index eb1aff4..b3b5227 100644
--- a/TypeScript/snowflakeIdv1.ts
+++ b/TypeScript/snowflakeIdv1.ts
@@ -328,13 +328,21 @@ export class snowflakeIdv1 {
      * 生成ID
      * @returns 
      */
-    public NextId(): number {
-        if (this.Method == BigInt(1)) {
-            //雪花漂移算法
-            return parseInt(this.NextOverCostId().toString())
+    public NextId(): number | bigint {
+        if (this._IsOverCost) {
+            //
+            let id = this.NextOverCostId()
+            if (id >= 9007199254740992n)
+                return id
+            else
+                return parseInt(id.toString())
         } else {
-            //常规雪花算法
-            return parseInt(this.NextNormalId().toString())
+            //
+            let id = this.NextNormalId()
+            if (id >= 9007199254740992n)
+                return id
+            else
+                return parseInt(id.toString())
         }
     }
 }
diff --git a/TypeScript/test/test1.ts b/TypeScript/test/test1.ts
index 1957567..5041b27 100644
--- a/TypeScript/test/test1.ts
+++ b/TypeScript/test/test1.ts
@@ -2,8 +2,6 @@ import { snowflakeIdv1 } from '../snowflakeIdv1'
 
 const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
 
-const Method = process.env.Method == undefined ? 1 : process.env.Method
-
-let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, Method: Method })
+let gen1 = new snowflakeIdv1({ WorkerId: WorkerId })
 let id1 = gen1.NextId()
-console.log(id1, id1.toString().length)
\ No newline at end of file
+console.log(`ID:${id1} 长度：${id1.toString().length}`)
\ No newline at end of file
diff --git a/TypeScript/test/test3.ts b/TypeScript/test/test3.ts
new file mode 100644
index 0000000..1957567
--- /dev/null
+++ b/TypeScript/test/test3.ts
@@ -0,0 +1,9 @@
+import { snowflakeIdv1 } from '../snowflakeIdv1'
+
+const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
+
+const Method = process.env.Method == undefined ? 1 : process.env.Method
+
+let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, Method: Method })
+let id1 = gen1.NextId()
+console.log(id1, id1.toString().length)
\ No newline at end of file
diff --git a/TypeScript/test/test4.ts b/TypeScript/test/test4.ts
new file mode 100644
index 0000000..6477960
--- /dev/null
+++ b/TypeScript/test/test4.ts
@@ -0,0 +1,9 @@
+import { snowflakeIdv1 } from '../snowflakeIdv1'
+
+const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
+
+let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 13 })
+for (let i = 0; i < 10; i++) {
+    let id1 = gen1.NextId()
+    console.log(`${i} ID:${id1} ${typeof id1} 长度：${id1.toString().length}`)
+}