c控件rutltextbox_richtextbox 控件_c richtextbox回车(5)

Font oldFont = this.richTextBox1.SelectionFont;

Font newFont;

if (oldFont.Italic)

newFont = new Font(oldFont,oldFont.Style & ~FontStyle.Italic);

else

newFont = new Font(oldFont,oldFont.Style | FontStyle.Italic);

this.richTextBox1.SelectionFont = newFont;

this.richTextBox1.Focus();

}

//取消或加上下划线

private void button8_Click(object sender, System.EventArgs e)

{

Font oldFont = this.richTextBox1.SelectionFont;

Font newFont;

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