爱站程序员基地问题
先上代码
import pymysqlimport timeimport randomimport uuidimport threading# 连接mysqldb = pymysql.connect(host=\'10.10.100.184\', port=3308,user=\'root\', passwd=\'3hyHd1MLARaMkUJsr3dp\', db=\'iot\')# 获取mysql操作光标cursor = db.cursor()# 初始化变量count = 0# 设置sql语句循环次数print(time.strftime(\'%Y-%m-%d %H:%M:%S\', time.localtime(time.time())))while count < 5:count += 1# 定义mysql字段的范围随机数变量quyu = random.randint(440300, 440310)jingdu = random.uniform(99, 117)weidu = random.uniform(23, 41)city_list = [11, 12, 13, 14, 15, 25, 35, 37, 38]city_id = random.choice(city_list)# driver_name = f\"\'cs{count}\'\"driver_name = \'cs\'print(driver_name)print(type(driver_name))driver_type_list = [111,311,812,813,814,911,1111,1211,1311]driver_type = random.choice(driver_type_list)online = [0,1]line = random.choice(online)# 生成mysql语句插入语句sql = \"insert into assets (`user_id`, `company_id`, `province_id`, `city_id`, `district_id`, `assets_name`, `assets_code`, `device_num`, `zn_device_type_id`, `device_type_id`, `project_id`, `longtitude`, `latitude`, `create_time`, `assets_picture`, `address`, `order_num`, `description`, `description_two`, `is_online`, `assets_type_picture`, `product_material`, `online_time`, `offline_time`)\\values (\'554\',\'99\',\'440000\',\'440300\',{},{},\'ghhgfftyhddd\',{},NULL,{},\'1\',{},{},\'2020-12-15 17:09:04\',\'[\\\"http://10.10.100.184:9997/images/1111608021229407238.jpg\\\"]\',\'广东省深圳市龙岗区宝龙街道新能源一路科信科技大厦\',NULL,NULL,NULL,{},NULL,NULL,NULL,NULL);\".format(quyu,driver_name,driver_name,driver_type,jingdu,weidu,line)print(sql)# 执行sql语句try:cursor.execute(sql)db.commit()# 错误回滚except:db.rollback()# 关闭mysqlprint(time.strftime(\'%Y-%m-%d %H:%M:%S\', time.localtime(time.time())))db.close()
可以看到\’cs\’在传递的过程中去掉了引号，导致数据操作不成功,于是我们在外面在嵌套一层引号，变成\”\’cs\’\”
# encoding:utf-8import pymysqlimport timeimport randomimport uuidimport threading# 连接mysqldb = pymysql.connect(host=\'10.10.100.184\', port=3308,user=\'root\', passwd=\'3hyHd1MLARaMkUJsr3dp\', db=\'iot\')# 获取mysql操作光标cursor = db.cursor()# 初始化变量count = 0# 设置sql语句循环次数print(time.strftime(\'%Y-%m-%d %H:%M:%S\', time.localtime(time.time())))while count < 5:count += 1# 定义mysql字段的范围随机数变量quyu = random.randint(440300, 440310)jingdu = random.uniform(99, 117)weidu = random.uniform(23, 41)city_list = [11, 12, 13, 14, 15, 25, 35, 37, 38]city_id = random.choice(city_list)# driver_name = f\"\'cs{count}\'\"driver_name = \"\'cs\'\"print(driver_name)print(type(driver_name))driver_type_list = [111,311,812,813,814,911,1111,1211,1311]driver_type = random.choice(driver_type_list)online = [0,1]line = random.choice(online)# 生成mysql语句插入语句sql = \"insert into assets (`user_id`, `company_id`, `province_id`, `city_id`, `district_id`, `assets_name`, `assets_code`, `device_num`, `zn_device_type_id`, `device_type_id`, `project_id`, `longtitude`, `latitude`, `create_time`, `assets_picture`, `address`, `order_num`, `description`, `description_two`, `is_online`, `assets_type_picture`, `product_material`, `online_time`, `offline_time`)\\values (\'554\',\'99\',\'440000\',\'440300\',{},{},\'ghhgfftyhddd\',{},NULL,{},\'1\',{},{},\'2020-12-15 17:09:04\',\'[\\\"http://10.10.100.184:9997/images/1111608021229407238.jpg\\\"]\',\'广东省深圳市龙岗区宝龙街道新能源一路科信科技大厦\',NULL,NULL,NULL,{},NULL,NULL,NULL,NULL);\".format(quyu,driver_name,driver_name,driver_type,jingdu,weidu,line)print(sql)# 执行sql语句try:cursor.execute(sql)db.commit()# 错误回滚except:db.rollback()# 关闭mysqlprint(time.strftime(\'%Y-%m-%d %H:%M:%S\', time.localtime(time.time())))db.close()
传递的参数有引号了，我们也检查了数据库，数据插入成功。
下面我来进行字符串和数字拼接,同时数字是一个变量，于是这么写：f\”\’cs{count}\’\”
# encoding:utf-8import pymysqlimport timeimport randomimport uuidimport threading# 连接mysqldb = pymysql.connect(host=\'10.10.100.184\', port=3308,user=\'root\', passwd=\'3hyHd1MLARaMkUJsr3dp\', db=\'iot\')# 获取mysql操作光标cursor = db.cursor()# 初始化变量count = 0# 设置sql语句循环次数print(time.strftime(\'%Y-%m-%d %H:%M:%S\', time.localtime(time.time())))while count < 5:count += 1# 定义mysql字段的范围随机数变量quyu = random.randint(440300, 440310)jingdu = random.uniform(99, 117)weidu = random.uniform(23, 41)city_list = [11, 12, 13, 14, 15, 25, 35, 37, 38]city_id = random.choice(city_list)driver_name = f\"\'cs{count}\'\"print(driver_name)print(type(driver_name))driver_type_list = [111,311,812,813,814,911,1111,1211,1311]driver_type = random.choice(driver_type_list)online = [0,1]line = random.choice(online)# 生成mysql语句插入语句sql = \"insert into assets (`user_id`, `company_id`, `province_id`, `city_id`, `district_id`, `assets_name`, `assets_code`, `device_num`, `zn_device_type_id`, `device_type_id`, `project_id`, `longtitude`, `latitude`, `create_time`, `assets_picture`, `address`, `order_num`, `description`, `description_two`, `is_online`, `assets_type_picture`, `product_material`, `online_time`, `offline_time`)\\values (\'554\',\'99\',\'440000\',\'440300\',{},{},\'ghhgfftyhddd\',{},NULL,{},\'1\',{},{},\'2020-12-15 17:09:04\',\'[\\\"http://10.10.100.184:9997/images/1111608021229407238.jpg\\\"]\',\'广东省深圳市龙岗区宝龙街道新能源一路科信科技大厦\',NULL,NULL,NULL,{},NULL,NULL,NULL,NULL);\".format(quyu,driver_name,driver_name,driver_type,jingdu,weidu,line)print(sql)# 执行sql语句try:cursor.execute(sql)db.commit()# 错误回滚except:db.rollback()# 关闭mysqlprint(time.strftime(\'%Y-%m-%d %H:%M:%S\', time.localtime(time.time())))db.close()
成功。
