数据我这里叫a,b,c了，跟你表1，2，3是对应的create table a(uid int,name varchar(10))insert into a values (1,'张一')insert into a values (2,'张二')create table b (uid int,type1 varchar(1))insert into b values (1,'a')insert into b values (1,'b')insert into b values (1,'c')insert int...
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