django models设置联合主键

class man(Model):
    id=AutoField(primary_key=True)    # 设置单个主键
    name = CharField(max_length=30)
    age =IntegerField()
class girl(Model):
    name=CharField(max_length=10)
    age = IntegerField()
    # 接下来设置联合主键
    class Meta:
        unique_together=("name","age")