Question

我在C＃

中有两个字符串

 string strEmail="<table id='tbl1'><tr><td>Green</td><td>Red</td></table>
    <table id='tbl3'><tr><td>Blue</td><td>Yellow</td></table>
    <table id='tbl4'><tr><td>Pink</td><td>White</td></table>";

    string tempAppend="<table id='tbl2'><tr><td>black</td><td>grey</td></table>";

现在，我想在tbl1之后立即附加tbl2？

如何在C＃中做到这一点？

请帮我解决这个问题。希望它对其他人也有帮助。

Answer 1

使用 StringBuilder ，试试这个：

string strEmail="<table id='tbl1'><tr><td>Green</td><td>Red</td></table><table id='tbl3'><tr><td>Blue</td><td>Yellow</td></table><table id='tbl4'><tr><td>Pink</td><td>White</td></table>";
string tempAppend="<table id='tbl2'><tr><td>black</td><td>grey</td></table>";

StringBuilder sb=new StringBuilder();
sb.Append(strEmail);

sb.Replace("<table id='tbl3'>",tempAppend +"<table id='tbl3'>");

strEmail = sb.ToString();

Answer 2

使用StringBuilder：

string strEmail = @"<table id='tbl1'><tr><td>Green</td><td>Red</td></table>
    <table id='tbl3'><tr><td>Blue</td><td>Yellow</td></table>
    <table id='tbl4'><tr><td>Pink</td><td>White</td></table>";

string tempAppend = @"<table id='tbl2'><tr><td>black</td><td>grey</td></table>";

var builder = new StringBuilder(strEmail);
var startPoint = "</td></table>";
var index = strEmail.IndexOf(startPoint);

builder.Insert(index + startPoint.Length, tempAppend);

strEmail = builder.ToString();

Answer 3

或者你可以尝试这个

string strEmail = "<table id='tbl1'><tr><td>Green</td><td>Red</td></table><table id='tbl3'><tr><td>Blue</td><td>Yellow</td></table><table id='tbl4'><tr><td>Pink</td><td>White</td></table>";
string tempAppend = "<table id='tbl2'><tr><td>black</td><td>grey</td></table>";
var inx = strEmail.IndexOf("<table id='tbl3'>");
StringBuilder stringBuilder = new StringBuilder(strEmail);

stringBuilder.Insert(inx, tempAppend);
strEmail = stringBuilder.ToString();

将表附加到String

3 个答案: