def fun1(num1, num2):
    if num1 < num2:
        num1, num2 = num2, num1

    vari1 = num1 * num2
    vari2 = num1 % num2

    while vari2 != 0:
        num1 = num2
        num2 = vari2
        vari2 = num1 % num2
    vari1 /= num2
    return vari1
def fun2(num1, num2):
    temp=num1%num2
    while temp != 0:
        num1=num2
        num2=temp
        temp=num1%num2
    return num2
print("欢迎使用计算机！")
while 1 :
    choose=input("请选择您想要进行的是1.纯整数运算还是2.浮点数运算还是3.分数运算")
    if choose == "1" :
        a=int(input("请输入您想计算的第一个数："))
        b=input("请输入您想进行的运算：")
        c=int(input("请输入您想计算的第二个数："))
    if choose == "2":
        a = float(input("请输入您想计算的第一个数："))
        b = input("请输入您想进行的运算：")
        c = float(input("请输入您想计算的第二个数："))
    if choose == "3":
        a = input("请输入您想计算的第一个数：")
        b = input("请输入您想进行的运算：")
        c = input("请输入您想计算的第二个数：")
    if b == "+" :
        if choose == "3":
            where=int(a.index("/"))
            a1=int(a[0:where])
            a2=int(a[where+1:])
            where1 = c.index("/")
            c1 = int(c[0:where1])
            c2 = int(c[where1+1:])
            if c2 == a2 :
                sim = fun2(a1 + c1, a2)
                if sim != 0:
                    print("您的运算结果为：" + str((a1+c1)/sim)+"/"+str(a2/sim))
                else :
                    print("您的运算结果为：" + str((a1 + c1)) + "/" + str(a2 ))
            else :
                sim=fun1(a2,c2)
                new=a1*sim/a2+c1*sim/c2
                sym=fun2(new,sim)
                if sym != 0  :
                    print("您的运算结果为：" + str(new / sym) + "/" + str(sim / sym))
                else :
                    print("您的运算结果为：" + str(new) + "/" + str(sim))
        else :
            d=a+c
            print("您的运算结果为：")
            print(round(d, 10))
    if b == "-" :
        if choose == "3":
            where=int(a.index("/"))
            a1=int(a[0:where])
            a2=int(a[where+1:])
            where1 = c.index("/")
            c1 = int(c[0:where1])
            c2 = int(c[where1+1:])
            if c2 == a2 :
                sim = fun2(a1 - c1, a2)
                if sim != 0:
                    print("您的运算结果为：" + str((a1-c1)/sim)+"/"+str(a2/sim))
                else :
                    print("您的运算结果为：" + str((a1 - c1)) + "/" + str(a2 ))
            else :
                sim=fun1(a2,c2)
                new=a1*sim/a2-c1*sim/c2
                sym=fun2(new,sim)
                if sym != 0  :
                    print("您的运算结果为：" + str(new / sym) + "/" + str(sim / sym))
                else :
                    print("您的运算结果为：" + str(new) + "/" + str(sim))
        else:
            d=a-c
            print("您的运算结果为：")
            print(round(d,10))
    if b == "*" :
        if choose == "3":
            where=int(a.index("/"))
            a1=int(a[0:where])
            a2=int(a[where+1:])
            where1 = c.index("/")
            c1 = int(c[0:where1])
            c2 = int(c[where1+1:])
            one=a1*c1
            two=a2*c2
            sim=fun2(one,two)
            if sim != 0:
                print("您的运算结果为：" + str(one / sim) + "/" + str(two/ sim))
            else:
                print("您的运算结果为：" + str(one) + "/" + str(two))
        else :
            d=a*c
            print("您的运算结果为：")
            print(round(d, 10))
    if b == "/" :
        if c == 0 :
            print("您输入的除数为0，请重新输入")
            continue
        else :
            if choose == "3":
                where = int(a.index("/"))
                a1 = int(a[0:where])
                a2 = int(a[where + 1:])
                where1 = c.index("/")
                c1 = int(c[0:where1])
                c2 = int(c[where1 + 1:])
                one = a1 * c2
                two = a2 * c1
                sim = fun2(one, two)
                if sim != 0:
                    print("您的运算结果为：" + str(one / sim) + "/" + str(two / sim))
                else:
                    print("您的运算结果为：" + str(one) + "/" + str(two))
            else:
                d=a/c
                print("您的运算结果为：")
                print(round(d, 10))
    if b == "mod" :
        if choose == "2" :
            print("浮点数不能进行mod运算")
            continue
        if choose == "3" :
            print("分数不能进行mod运算")
            continue
        d=a%c
        print("您的运算结果为："+str(d))
    if b == "^" :
        if a == 0 :
            print("您输入的底数为0，请重新输入")
            continue
        if choose == "3" :
            print("分数暂不支持指数运算")
            continue
        else :
            d=a**c
            print("您的运算结果为：")
            print(round(d, 10))
    ok=input("您是否想继续运算？")
    if ok == "是" :
        continue
    else :
        break