python递归实现"abcd"字符串全排列 1.保持a不动,动bcd 2.保持b不动,动cd 3.保持c不动,动d def pailie(head="",string=""): if len(string)>1: for father_string in string: pailie(head+father_string,string.replace(father_string,"")) #关键一点:将头和尾全部传下去
原文 获取listboxitem在ListBox中的index并转换成abcd 截图如下: 1.实现Converter 获取到listbox,并得到listitem在listbox中的index public class ItemContainerToZIndexConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globaliza