严中平先生的这本书原是为中国近代经济史专业硕士生写的一篇讲义,篇幅不大.但书中所讲所论确如书名所示,始终围绕着一个方法问题.不过,倘若我们怀着仅仅是寻找某种捷径或治学的某一秘诀,读了此书倒也不免有所失望.因为,虽然书中讲的是方法,但就象鲁迅关于作文秘诀所说的那样,其实并无所谓秘密的绝窍. This book by Mr. Yan Zhongping was originally a lecture written for a modern master’s degree in economic history in China, but the book did say that the title of the book was indeed centered on a methodological issue, however, if We are not disappointed to read the book simply because we are looking for a shortcut or a cure for it because, although the book speaks of methods, as Lu Xun said about writing tips, in fact It does not matter if you know the secret.