关注开源代码的实际应用
可通过System.Environment.Version.ToString()取得当前CLR版本号，然后对照下表得到Revision版本：
| .NET Framework version | Revision | Version |
|---|---|---|
| 3.5 | Original release | 3.5.21022.8 |
| 3.5 | Service Pack 1 | 3.5.30729.1 |
| 3.0 | Original release | 3.0.4506.30 |
| 3.0 | Service Pack 1 | 3.0.4506.648 |
| 3.0 | Service Pack 2 | 3.0.4506.2152 |
| 2.0 | Original release | 2.0.50727.42 |
| 2.0 | Service Pack 1 | 2.0.50727.1433 |
| 2.0 | Service Pack 2 | 2.0.50727.3053 |
| 1.1 | Original release | 1.1.4322.573 |
| 1.1 | Service Pack 1 | 1.1.4322.2032 |
| 1.1 | Service Pack 1 (Windows Server 2003 32-bit version*) | 1.1.4322.2300 |
| 1.0 | Original release | 1.0.3705.0 |
| 1.0 | Service Pack 1 | 1.0.3705.209 |
| 1.0 | Service Pack 2 | 1.0.3705.288 |
| 1.0 | Service Pack 3 | 1.0.3705.6018 |