mysql like使用预编译

有两种方式：

1、用字符串拼接

value := "阳光"
value = "'%"+value+"%'"
query = "select uid from info where tags like ? 
err := mysqlutil.GetInstance().Query(context.Background(), next, query,value)     

2、用mysql内置的字符串连接函数concat()

value := "阳光"
query = "select uid from info where tags like concat('%',?,'%') 
err := mysqlutil.GetInstance().Query(context.Background(), next, query,value)