这道题我回答过的,不知道怎么被删除了。下面是上次回答的代码。
import randomcnt_n = int(input("题目数量:"))
max_n = int(input("最大数字:"))
# 产生乘法查找表
times_list = []
for i in range(max_n):
for j in range(max_n):
if i * j <= max_n:
qst = str(i) + "*" + str(j)
rst = str(i*j)
if qst not in times_list:
times_list.append([qst, rst])
# 题目表
question_list = []
for _ in range(cnt_n):
# 随机运算,0+,1-,2*,3/
op = random.randint(0, 3)
# +
if op == 0:
x1 = random.randint(0, max_n)
x2 = random.randint(0, max_n - x1)
result = x1 + x2
qst = str(x1) + "+" + str(x2) + "="
question_list.append([qst, result])
# -
elif op == 1:
x1 = random.randint(0, max_n)
x2 = random.randint(0, x1)
result = x1 - x2
qst = str(x1) + "-" + str(x2) + "="
question_list.append([qst, result])
# *
elif op == 2:
tmp = random.sample(times_list, 1)
qst = tmp[0][0] + "="
question_list.append([qst, tmp[0][1]])
# /
elif op == 3:
tmp = random.sample(times_list, 1)
x1, x2 = tmp[0][0].split("*")
result = tmp[0][1]
while int(x1) == 0:
tmp = random.sample(times_list, 1)
x1, x2 = tmp[0][0].split("*")
result = tmp[0][1]
qst = result + "/" + x1 + "="
question_list.append([qst, x2])
print("开始回答:")
wrong = ""
for i, qst in enumerate(question_list):
x = input("第{:>2d}题:{}".format(i+1, qst[0]))
if int(x) != int(qst[1]):
wrong += str(i+1) + " "
w_item = wrong.split()
print("回答正确{}道题目。".format(len(question_list) - len(w_item)))
print("回答错误的题号是:{}".format(wrong))
用Python编程随机产生10个随机整数,并输出整数的和,方法如下
准备材料:python、电脑
1、本文需要加载的模块是:random。
2、给出0到10之间的随机整数:import random,a = random.randint(0,10),print(a)。
3、给出9到10之间的随机实数:import random,a = random.uniform(9,10),print(a)。
4、从9、19、29、39、……、99之间,随机选取一个实数:import random,a = random.randrange(9, 100, 10),print(a)。
5、从列表[5,6,7,8,9]里面,随机选取一个数:import random,a = random.choice([5,6,7,8,9]),print(a)。
6、从一个字符串里面,随机选取一个字符:import random,a = random.choice("从一个字符串里面,随机选取一个字符!"),print(a)。
7、随机打乱列表里面的字符顺序:import random,a = ["p","q","r","s","t","p","q","r","s","t","p","q","r","s","t",],random.shuffle(a),print(a)。
8、从列表里面随机选取9个数字:import random,a = range(3,100,2),b = random.sample(a, 9),print(b)。