然后统计和归类
归类分行归类方法
算术符号归类
数字大小排序
算术符号归类
import randomdef generate_expression(num_range, num_count, operators):nums = random.sample(range(num_range[0], num_range[1]+1), num_count)ops = random.choices(operators, k=num_count-1)expression = str(nums[0])for i in range(1, num_count):expression += ' ' + ops[i-1] + ' ' + str(nums[i])try:result = eval(expression)if int(result) == result: # 判断结果是否为整数return {'expression': expression,'result': int(result),'operator': ops,'numbers': nums}except ZeroDivisionError:return Nonenum_range = (1, 20)
num_count = 2
operators = ['+', '-', '*', '/']
expressions = []
for i in range(10):expression = generate_expression(num_range, num_count, operators)if expression:expressions.append(expression)# 按照算术符号进行归类
classified_expressions = {}
for expression in expressions:operator = ''.join(expression['operator'])if operator not in classified_expressions:classified_expressions[operator] = []classified_expressions[operator].append(expression)# 输出归类结果
print("按照算术符号进行归类：")
for operator, exp_list in classified_expressions.items():print(f"算术符号: {operator}")for exp in exp_list:print(f"表达式: {exp['expression']}")print(f"结果: {exp['result']}")print()# 按照数字大小进行排序
sorted_expressions = sorted(expressions, key=lambda x: max(x['numbers']), reverse=True)# 输出排序结果
print("按照数字大小排序：")
for exp in sorted_expressions:print(f"表达式: {exp['expression']}")print(f"结果: {exp['result']}")print()
python/自由计算3.2.2.1.py" && exit < 按照算术符号进行归类：
算术符号: +
表达式: 2 + 1
结果: 3
表达式: 20 + 19
结果: 39
表达式: 1 + 10
结果: 11
表达式: 16 + 5
结果: 21算术符号: -
表达式: 2 - 5
结果: -3
表达式: 4 - 17
结果: -13算术符号: *
表达式: 4 * 9
结果: 36
表达式: 14 * 15
结果: 210
表达式: 12 * 1
结果: 12按照数字大小排序：
表达式: 20 + 19
结果: 39表达式: 4 - 17
结果: -13表达式: 16 + 5
结果: 21表达式: 14 * 15
结果: 210表达式: 12 * 1
结果: 12表达式: 1 + 10
结果: 11表达式: 4 * 9
结果: 36表达式: 2 - 5
结果: -3表达式: 2 + 1
结果: 3#[QPython] Press enter to exit ...
)
