RichTextBox控件允许用户输入和编辑文本的同时提供了比普通的TextBox控件更高级的格式特征
//color在c#中是个枚举enum
蓝色按钮：在蓝色按钮注册click事件后，richtextbox1.selectioncolor=color.blue；
红色按钮：在红色按钮注册click事件后，RichTextBox1.selectionColor=color.Red；
隶属18按钮；在注册click事件后，RichTextBox1.selectionFont=new font（“隶属”，18）；
楷书18按钮；在注册事件后，RichTextBox1.selectionFont=new font（“楷书”，20）；
项目符号；在注册事件后，RichTextBox1.selectionBullet=true；
底纹；在注册事件后，RichTextBox1.selectionBackColor=color.gray；//底纹就是背景颜色
复原：//要看看richtextbox以前的字体是什么的，之后直接赋值就好了
RichTextBox1.selectionFont=new font（“宋体”，15）；
RichTextBox1.selectionColor=color.white；//上面所有的都要写回来
private void blue_Click(object sender, EventArgs e)
{
//richb.选择颜色=颜色中的蓝色
Richb.SelectionColor = Color.Blue;
}
private void red_Click(object sender, EventArgs e)
{
Richb.SelectionColor = Color.Red;
}
private void fontKt18_Click(object sender, EventArgs e)
{
Richb.SelectionFont = new Font("楷书",18);
}
private void micr20_Click(object sender, EventArgs e)
{
Richb.SelectionFont = new Font("微软雅黑", 18);
}
private void DWbut_Click(object sender, EventArgs e)
{
Richb.SelectionBackColor = Color.Yellow;
}
private void resat_Click(object sender, EventArgs e)
{
Richb.SelectionBackColor = Color.White;
Richb.SelectionColor = Color.Black;
Richb.SelectionFont = new Font("宋体",9);
}
private void blue_Click(object sender, EventArgs e)
{
//richb.选择颜色=颜色中的蓝色
Richb.SelectionColor = Color.Blue;
}
private void red_Click(object sender, EventArgs e)
{
Richb.SelectionColor = Color.Red;
}
private void fontKt18_Click(object sender, EventArgs e)
{
Richb.SelectionFont = new Font("楷书",18);
}
private void micr20_Click(object sender, EventArgs e)
{
Richb.SelectionFont = new Font("微软雅黑", 18);
}
private void DWbut_Click(object sender, EventArgs e)
{
Richb.SelectionBackColor = Color.Yellow;
}
private void resat_Click(object sender, EventArgs e)
{
Richb.SelectionBackColor = Color.White;
Richb.SelectionColor = Color.Black;
Richb.SelectionFont = new Font("宋体",9);
}