 
        错误信息如下:
commit -m "" C:/Users/.../Demo.java
 Sending C:/Users/.../Demo.java
 Transmitting file data ...
 A checksum mismatch occurred
svn: Commit failed (details follow):
svn: Base checksum mismatch on '/.../Demo.java':
 expected: 9d20fce676d911c71195e52d72b2f869
 actual: 192906151d528d67f3e57c06319efb2a
http://www.thinksaas.cn/group/topic/310706/