自增字段还原
http://zhidao.baidu.com/question/383399360.html&__bd_tkn__=2af9462931358d2a520ba679b8fe33bc92059ef48078338d51fed8133ea5c69d362ad36bb4bcda3b39bb3949f6bbe47087ac3af56e60b1f4e7eb60157b54fe31946eaafe5e0f03de01252775d630b90f4a71987e792bc385db45427901214629bf107f424eb5aca89c0af4accbdc8c0bc93523f74eaf
http://topic.csdn.net/t/20060524/19/4776305.html