order = [] for i in strA: order.append(i) order.reverse() #将列表反转 print ''.join(order) #将list转换成字符串执行结果: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 请输入需要翻转的字符串:abcdeggsdd ddsggedcba2、分别输出字符串中奇数坐标和偶数坐标的字符 最简单的方法是...
1 #方法三,用reverse()方法对列表操作取反,join()方法使列表转换为字符串 2 str = list(input('input a string:')) 3 str.reverse()#该方法没有返回值,若打印则出现None,但会对列表元素进行反向排序。因此用print(list)来查看排序即可 4 print(''.join(str)) 方法4:range()第三个参数 1 str = inp...
1 #方法三,用reverse()方法对列表操作取反,join()方法使列表转换为字符串 2 str = list(input('input a string:')) 3 str.reverse()#该方法没有返回值,若打印则出现None,但会对列表元素进行反向排序。因此用print(list)来查看排序即可 4 print(''.join(str)) 1. 2. 3. 4. 5. 方法4:range()第...
raw_input(): raw_input() asks the user for a string of data and simply returns the string, the string data ended with a newline). It can also take an argument, which is displayed as a prompt before the user enters the data. print raw_input('Input your name: ') prints out Input ...
# in python you can treat the string as an array by adding [] after it and # the colons inside represent str[start:stop:step] where if step is a negative number # it'll loop through the string backwards return str[::-1] print (FirstReverse(input())) ...
1 a,b = 0, 1 2 while b<100: 3 print (b), 4 a, b = b, a+b 5.介绍一下Python中webbrowser的用法? webbrowser模块提供了一个高级接口来显示基于Web的文档,大部分情况下只需要简单的调用open()方法。 webbrowser定义了如下的异常: exception webbrowser.Error, 当浏览器控件发生错误是会抛出这个异...
由于UserString提供与其超类相同的功能str,因此您可以reversed()开箱即用地执行反向迭代: >>> >>> text = ReversibleString("Hello, World!")>>> # Support reverse iterationoutof the box>>>forcharinreversed(text): ... print(char) ...!d
Python: How to iterate list in reverse order #1 for index, val in enumerate(reversed(list)): print len(list) - index - 1, val #2 def reverse_enum(L): for index in reversed(xrange(len(L))): yield index, L[index] L = ['foo', 'bar', 'bas']...
由于UserString提供与其超类相同的功能str,因此您可以reversed()开箱即用地执行反向迭代: 深色代码主题 复制 >>>text = ReversibleString("Hello, World!")>>># Support reverse iteration out of the box>>>forcharinreversed(text):...print(char)...! d l...
# Using slicing to reverse a string my_string = 'Hello, World!' reversed_string = my_string[::-1] print(reversed_string) The [::-1] syntax in the above code tells Python to slice the entire string and step backward by -1, which effectively reverses the string. ...