Question

如何删除string上的某个StringBuilder？防爆。 .append("Stack over flow dot com")删除flow，.toString()现在等于Stack over dot com。我想尝试.remove()，但它只接受(startIndex, length)。我是否必须先在StringBuilder中搜索字符串并存储用于.remove(i,x)的索引和长度？如果可能的话，还有更好的方法吗？

Dim someStrBlr As New StringBuilder 
Dim someStrRmv = "flow"
Dim someString = "Stack over flow dot com"
someStrBlr.append(someString)
someStrBlr.remove(?) 'remove? "flow"
someStrBlr.remove(?) 'replace? "flow" with ""
Console.WriteLine(someStrBlr.toString()) "Stack over dot com"

Answer 1

尝试以下

Dim someStrBlr As New StringBuilder
Dim someStrRmv = "flow"
Dim someString = "Stack over flow dot com"
someStrBlr.Append(someString)
someStrBlr.Replace(someStrRmv, "") 'removes the flow from string
Console.WriteLine(someStrBlr.ToString()) '"Stack over dot com"

顺便说一句，如果你真的想找到然后删除，请参考link

Answer 2

 Dim someStrBlr As New StringBuilder  
 Dim someStrRmv = "flow" 
 Dim someString = "Stack over flow dot com" 
 someStrBlr.append(someString)
 someStrBlr.replace(someStrRmv,"") ' Replace with empty string
 Console.WriteLine(someStrBlr.toString())

参考：https://msdn.microsoft.com/en-us/library/3h5afh4w(v=vs.110).aspx

从StringBuilder中删除匹配的字符串

2 个答案: