this.textBoxLog.Focus();//获取焦点
this.textBoxLog.Select(this.textBoxLog.TextLength,0);//光标定位到文本最后
this.textBoxLog.ScrollToCaret();//滚动到光标处
this.textBoxLog.Focus();//获取焦点
this.textBoxLog.Select(this.textBoxLog.TextLength,0);//光标定位到文本最后
this.textBoxLog.ScrollToCaret();//滚动到光标处