用Python实现写倒序输出(任意位数)_python

x=int(input('请输入任意一个数字：'))
y=str(x)  #转换为字符串
l=len(y) #长度
a=[]
for i in range(l):
    a.append(y[l-1-i])
# print(a)
for j in a:
    print(j,end='')

a=int(input('请输入任意位的数字'))
b=0
while a>0:
    b=b*10+a%10
    a=a//10
print(b)

a=input('请输入：')
b=[]
l=len(a)
x=0
for i in a:
    b.append(a[l-1-x])
    x+=1
    print(b)

mt = input("请输入:")
def reverse(num):
    s = ""
    if num<-2**31 or num>2**31-1:
        return 0
    else:
        num_list = list(str(num))
        for it in range(len(num_list)):
            if num_list[-1]=='0':
                num_list.pop()
        lst = num_list[::-1]
        for i in lst:
            if i=="-":
                s = "-"+s
            else:
                s = s+i
        return s
print(reverse(int(mt)))