上下支持的变法为何会失败北宋发展至中期，由宋初集权的政治体制和经济体制所带来的积弊已愈益显著，其表现一是国家财政空虚；二是政治机构重叠，人浮于事；三是军队军纪不明，缺乏训练，战斗力严重削弱。家王朝陷于严重的内外交困的境地。为此，当时一批有识之上再也无法平? Why did the unsuccessful reform fall from the middle of the Northern Song Dynasty to the mid-term? The political and economic system with centralized power in the early Song Dynasty has become more and more obvious. The first manifestation is the state’s fiscal emptiness. The second is that the political institutions overlap and the people float on the things. The third is that the army Unidentified military discipline, lack of training, severely weakened combat effectiveness. Family dynasty in a serious situation of internal and external difficulties. To this end, then a group of knowledgeable can no longer be flat?