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golang mysql in ?_golang-mysql

傅明知
2023-12-01

1.mysql配置

CREATE TABLE shop (

article INT(4) UNSIGNED ZEROFILL DEFAULT '0000' NOT NULL,

dealer CHAR(20) DEFAULT '' NOT NULL,

price DOUBLE(16,2) DEFAULT '0.00' NOT NULL,

PRIMARY KEY(article, dealer));

INSERT INTO shop VALUES

(1,'A',3.45),(1,'B',3.99),(2,'A',10.99),(3,'B',1.45),(3,'C',1.69),

(3,'D',1.25),(4,'D',19.95);

好了,例子数据是这样的:

SELECT * FROM shop

+---------+--------+-------+

| article | dealer | price |

+---------+--------+-------+

| 0001 | A | 3.45 |

| 0001 | B | 3.99 |

| 0002 | A | 10.99 |

| 0003 | B | 1.45 |

| 0003 | C | 1.69 |

| 0003 | D | 1.25 |

| 0004 | D | 19.95 |

+---------+--------+-------+

2.golang接口

package main

import(

"fmt"

"github.com/ziutek/mymysql/mysql"

_ "github.com/ziutek/mymysql/native"

)

func main() {

db := mysql.New("tcp", "", "127.0.0.1:3306","root","123456","aaa")

err := db.Connect()

if err != nil{

fmt.Println(err); //连接失败

}

rows, res, err := db.Query("select * from shop")

if err == nil{

fmt.Println(rows[0].Str(0)) //字符串显示第一个字段内容

name := res.Map("price") //查询字段名返回序号

fmt.Println(rows[0].Str(name))

}

}

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