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RichTextBox指定文本高亮显示
this.richTextBox1.Text = " 如果只选中一个文字，如果……";
string strKey = "如果";
int start = 0;
int end = this.richTextBox1.Text.Length;
int index = richTextBox1.Find(strKey, start, end, RichTextBoxFinds.None);
while (index != -1)
{
richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont, FontStyle.Underline | FontStyle.Bold);
richTextBox1.SelectionColor = Color.Blue;
start = index + strKey.Length;
index = richTextBox1.Find(strKey, start, end, RichTextBoxFinds.None);
}
查找指定文本并加粗、下划线以蓝色显示
最后更新：2017-04-03 05:39:41