mysql like使用預編譯

有兩種方式：

1、用字符串拼接

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

 

2、用mysql內置的字符串連接函數concat()

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