1、reverse a sentence in place.
例子：I am yuchifang -> yuchifang am I
注意in place
例子：I am yuchifang -> yuchifang am I
注意in place
嘿嘿！这个题做出来了，迟方兄，我这次是注意了in place了的，在有限的空间里进行转换，所以我只用了一个temp来做临时存放用，而这个存放的也不是整个句子的数组，只是一个单词，这样，先把句子全倒转过来，然后再一个单词一个单词的倒转，那么在转换时就只多用出一个单词的位置来进行处理。
程序函数如下：
Public Function result(ByVal souce As String) As String
souce = Trim(souce)
Dim i, j As Integer
Dim temp As String = Nothing
j = souce.Length
souce = StrReverse(souce)
For i = 1 To j
If Mid(souce, i, 1) <> " " Then temp = Mid(souce, i, 1) & temp
If Mid(souce, i, 1) = " " Or i = j Then
souce = Replace(souce, StrReverse(temp), temp, 1, 1, CompareMethod.Text)
temp = Nothing
End If
Next
Return souce
End Function
这次我是仔细测试过了的。
Public Function result(ByVal souce As String) As String
souce = Trim(souce) Dim i, j As Integer Dim temp As String = Nothing j = souce.Length souce = StrReverse(souce) For i = 1 To j If Mid(souce, i, 1) <> " " Then temp = Mid(souce, i, 1) & temp If Mid(souce, i, 1) = " " Or i = j Then souce = Replace(souce, StrReverse(temp), temp, 1, 1, CompareMethod.Text) temp = Nothing End If Next Return souce End Function这次我是仔细测试过了的。
replace的参数里，那两个1，表示从第一个字符起搜索，只替换一个。
StrReverse()这个函数是vb.net里的将字符串的字符倒过来排列的函数
StrReverse()这个函数是vb.net里的将字符串的字符倒过来排列的函数