python核心编程-第五章-习题

def PRoduct(x,y):    return x * y

>>> print product(23,24)552

def result(x):    if 90 <= x <= 100:        return "A"    elif 80 <= x <= 89:        return "B"    elif 70 <= x <= 79:        return "C"    elif 60 <= x <= 69:        return "D"    else:        return "F"

# -*- coding:utf-8 -*-def year_judge(year):        if (int(year) % 4 == 0 and int(year) % 100 != 0) or int(year) % 400 == 0:        return u"该年是闰年！"    else:        return u"该年是平年！"

# -*- coding:utf-8 -*-def exchange(x):    divide_25,mod_25 = divmod(x,25)[0],divmod(x,25)[1]    if mod_25 == 0:        return u"%d 美分换算结果是：%d枚25美分。" /        % (x,divide_25)    else:        divide_10,mod_10 = divmod(mod_25,10)[0],divmod(mod_25,10)[1]        if mod_10 == 0:            return u"%d美分换算结果是：%d枚25美分，%d枚10美分。" /            % (x,divide_25,divide_10)        else:            divide_5,mod_5 = divmod(mod_10,5)[0],divmod(mod_10,5)[1]            if mod_5 == 0:                return u"%d美分换算结果是：%d枚25美分，%d枚10美分，%d枚5美分。" /                % (x,divide_25,divide_10,divide_5)            else:                return u"%d美分换算结果是：%d枚25美分，%d枚10美分，%d枚5美分,%d枚1美分。"/                % (x,divide_25,divide_10,divide_5,mod_5)                def cents_exchange(x):    if x < 1:        x = x * 100    else:        x = int(x)        print exchange(x)

# -*- coding:utf-8 -*-def calculator():    global expression    expression = raw_input("请输入一个表达式，可以计算加减乘除取余和幂运算，按Q退出。".decode("utf-8").encode("gbk"))    if expression == "Q":        return u"程序退出，再见"else:        for i in ["+","-","**","/","%","*"]:            if i in expression:                numbers = expression.split(i)                if "." in expression:                    N1 = float(numbers[0])                    N2 = float(numbers[1])                else:                    N1 = int(numbers[0])                    N2 = int(numbers[1])                if i == "+":                    return N1 + N2                elif i == "-":                    return N1 - N2                elif i == "*":                    return N1 * N2                elif i == "**":                    return N1 ** N2                elif i == "%":                    return N1 % N2                elif i == "/":                    return N1 / N2while True:                        print calculator()    if expression == "Q":        break 

# -*- coding:utf-8 -*-sales = float(raw_input("请输入营业额".decode("utf-8").encode("gbk")))rate = float(raw_input("请输入税率,以两位小数表示".decode("utf-8").encode("gbk")))print u"应缴税额为：%f 元人民币。" % (sales * rate)

# -*- coding:utf-8 -*-def geometry():    prompt = raw_input("计算正方形面积请输入1，立方体体积请输入2，圆面积请输入3，球体积请输入4"./    decode("utf-8").encode("gbk"))    if prompt == "1":        side = raw_input("请输入边长".decode("utf-8").encode("gbk"))        print u"该正方形的面积是：%d" % (int(side) ** 2)    elif prompt == "2":        side = raw_input("请输入边长".decode("utf-8").encode("gbk"))        print u"该正方体的体积是：%d" % (int(side) ** 3)    elif prompt == "3":        radius = raw_input("请输入半径".decode("utf-8").encode("gbk"))        print u"该圆的面积是：%s" % (float(radius) ** 2 * 3.14)    elif prompt == "4":        radius = raw_input("请输入半径".decode("utf-8").encode("gbk"))        print u"该球的体积是：%s" % (float(radius) ** 3 * 4 * 3.14 / 3)geometry()

# -*- coding:utf-8 -*-def F_to_C(F):    print u"%s℉等于%f℃" % (F,(float(F) - 32) * 5 / 9)

#取偶数for i in range(0,21):    if i % 2 == 0:        print i,       print #取奇数for i in range(0,21):    if i % 2 == 1:        print i, 

# -*- coding:utf-8 -*-def judge_divide(x,y):    if x % y == 0:        print u"%d可以被%d整除！" % (x,y)    else:        print u"%d不能被%d整除！" % (x,y)def judge():    number1 = int(raw_input("请输入第一个整数".decode("utf-8").encode("gbk")))    number2 = int(raw_input("请输入第二个整数".decode("utf-8").encode("gbk")))    if number1 < number2:        judge_divide(number2,number1)    else:        judge_divide(number1,number2)

# -*- coding:utf-8 -*-import sysprint sys.maxintprint -sys.maxint - 1print sys.float_info.maxprint sys.float_info.minprint sys.long_info

# -*- coding:utf-8 -*-time = raw_input("请输入时间，英文冒号:前为小时数，英文冒号:后为分钟数".decode("utf-8").encode("gbk"))hour = int(time.split(":")[0])minute = int(time.split(":")[1])print u"%d:%d等于%d分钟。" % (hour,minute,hour * 60 + minute)

# -*- coding:utf-8 -*-def Annual_return_rate(rate):    per_day_rate = rate / 365.0    investment = 1    interest = 1 * (1 + per_day_rate) ** 365 - 1    print u"年回报率为：",interest * 100,"%"Annual_return_rate(0.5)

# -*- coding:utf-8 -*-def greatest_common_divisor(x,y):    divisor = max(x,y)    while divisor >= 1:        if x % divisor != 0 or y % divisor != 0:            divisor -= 1        else:            print u"%d和%d的最大公约数是%d。" % (x,y,divisor)            breakdef least_common_multiple(x,y):    multiple = max(x,y)    while multiple <= x * y:        if multiple % x == 0 and multiple % y == 0:            print u"%d和%d的最小公倍数是%d。" % (x,y,multiple)            break        else:            multiple += 1

# -*- coding:utf-8 -*-import randomN = random.randint(2,100)i = 1random_list1 = []while i <= N:    random_list1.append(random.randint(0,2 ** 31 - 1))    i += 1h = 1N2 = random.randint(1,100)random_list2 = []while h <= N2:    random_list2.append(random.choice(random_list1))    h += 1print sorted(random_list2)