問題：將數(shù)據(jù)庫中查出的數(shù)據(jù)（列表中包含元組）轉(zhuǎn)換為列表中字典。原數(shù)據(jù)結(jié)構(gòu)，從數(shù)據(jù)庫查出：cur=[("t1","d1"),("t2","d2")]轉(zhuǎn)換后數(shù)據(jù)結(jié)構(gòu)：[{'description':'d1','title':'t1'},{'description':'d2','title':'t2'}]方法一，使用append,出現(xiàn)錯誤結(jié)果pythoncur=[("t1","d1"),("t2","d2")]post_dict={}posts=[]forrowincur:post_dict['title']=row[0]post_dict['description']=row[1]print"post_dict:",post_dictposts.append(post_dict)print"posts:",posts方法一運(yùn)行結(jié)果：pythonpost_dict:{'description':'d1','title':'t1'}posts:[{'description':'d1','title':'t1'}]post_dict:{'description':'d2','title':'t2'}posts:[{'description':'d2','title':'t2'},{'description':'d2','title':'t2'}]方法二，使用列表解析,結(jié)果正常pythoncur=[("a","a1"),("b","b1")]posts=[]posts=[dict(title=row[0],description=row[1])forrowincur]print"posts:",posts方法二運(yùn)行結(jié)果，正常pythonposts:[{'description':'d1','title':'t1'},{'description':'d2','title':'t2'}]