# encoding: utf8 import time import pymysql import random last_names = "李,王,张,刘,陈,杨,黄,赵,周,吴,徐,孙,朱,马,胡,郭,林,何,高,梁,郑,罗,宋,谢,唐,韩,曹,许,邓,萧,冯,曾,程,蔡,彭,潘,袁,于,董,余,苏,叶,吕,魏,蒋,田,杜,丁,沈,姜,范,江,傅,钟,卢,汪,戴,崔,任,陆,廖,姚,方,金,邱,夏,谭,韦,贾,邹,石,熊,孟,秦,阎,薛,侯,雷,白,龙,段,郝,孔,邵,史,毛,常,万,顾,赖,武,康,贺,严,尹,钱,施,牛,洪,龚" last_names_list = last_names.split(",") course_names = "语文、数学、外语、历史、思想政治、地理、 化学、物理、生物、体育、美术、音乐、技术、微积分、体育、毛泽东思想概论、思想道德修养、高等数学、线性代数、概率论与数理统计、离散数学、计算机原理、人工智能、程序设计基础、面向对象程序设计、数字逻辑电路、电路电子技术、数据结构与算法、WEB程序设计、计算机组成与结构、操作系统、数据库系统原理、编译原理、计算机网络" course_names_list = course_names.split("、") # 随机生成10000条学生表数据 def student_random_record(conn, cursor): """ # 随机生成10000条学生表数据 :return: """ year = time.localtime().tm_year # 获取当前系统时间的年份 num = 1 class_num = 1 class_id = 1 for i in range(10000): sid = "%d" % year + "%04d" % num sname = random.choice(last_names_list) + sid ssex = random.choice(["男", "女"]) sage = random.randint(15, 35) sclass = "%d" % year + "%02d" % class_id sql = f"INSERT INTO student VALUES ('{sid}', '{sname}', '{ssex}', {sage}, '{sclass}')" cursor.execute(sql) sid_list.append(sid) if num == 2500: # 每年学生数2500 year += 1 num = 1 class_id = 1 if class_num == 30: # 班级学生数30 class_id += 1 class_num = 1 num += 1 class_num += 1 conn.commit() def course_random_record(conn, cursor): """ 随机生成1000条课程表数据 :return: """ hours = [i for i in range(8, 192 + 1, 8)] for i in range(1000): cid = "%03d" % (i + 1) cname = random.choice(course_names_list)# course_names_list为样例课程名列表 hour = random.choice(hours) credit = round(hour / 16, 2) sql = f"INSERT INTO course (cid, cname, credit, chours) VALUES ('{cid}', '{cname}', {credit}, {hour})" cursor.execute(sql) cid_list.append(cid) conn.commit() def sc_random_record(conn, cursor): """ 随机生成10000 * 30条以上选课表数据 :return: """ for sid in sid_list: year = int(sid[:4]) # 取sid的前四位学年 for i in range((year - time.localtime().tm_year + 1) * 16): # 学习课程按学年有16、32、48、64门按学年递增分布 cid = random.choice(cid_list) score = random.randint(0, 101) sql = f"INSERT INTO sc(sid, cid, score) VALUES ('{sid}', '{cid}', {score})" cursor.execute(sql) conn.commit() if __name__ == '__main__': # 创建mysql连接 conn = pymysql.connect(user="root", password="Wyz010810", database="SCT", host="127.0.0.1", port=3306) # 创建游标 cursor = conn.cursor() sid_list = [] # 用于存储生成的sid cid_list = [] # 用于存储生成的cid student_random_record(conn, cursor) course_random_record(conn, cursor) sc_random_record(conn, cursor) # 关闭数据库连接 cursor.close() conn.close()