student表的字段有id,name,class,number
score表中的字段有number,chinese,math,english
创建表
create table student(`id`...table score(`number` char(40),`chinaese` char(40),`math` char(40),`english` char(40));
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当前的表...name, class,chinaese, math, english FROM score a INNER JOIN student b ON a.number = b.number;
这样就将两张表连接到了一起