6.删除-demo

在连接数据库的基础上

deleteResult, err := db.Exec("DELETE FROM user0 WHERE id = ?", 1)

package main

//删除-demo

import (
    "database/sql"
    "fmt"
    _ "github.com/go-sql-driver/mysql"
    "log"
)

func main() {
    db, err := sql.Open("mysql", "ims:123456@tcp(192.168.0.26:3306)/ibcf")
    if err != nil {
       log.Fatal("打开数据库失败:", err)
    }
    //关闭数据库
    defer db.Close()
    //验证是否连接成功
    err = db.Ping()
    if err != nil {
       log.Fatal("连接失败:", err)
    }
    fmt.Println("连接数据库成功!")
    deleteResult, err := db.Exec("DELETE FROM user0 WHERE id = ?", 1)
    if err != nil {
       log.Fatal("删除失败:", err)
    }
    row, err := deleteResult.RowsAffected()
    if err != nil {
       log.Fatal("影响失败: ", err)
    }
    fmt.Println("row affected: ", row)
}