CRichEdit pEdit;……………………CString str;pEdit.GetWindowText(str);pEdit.SetSel(str.GetLength(),str.GetLength())); _______________________________________换行:要把它的mutilLine属性设为true,还有wantreturn属性设为true,然后输入时按回车键可换行。代码换行是在字符串换行处中插入"\r\n"