1.Label,TextBox,PasswordBox,Button控件含义

Label 文本标签 父类 ContentControl

TextBox 文本框 编辑与显示 父类 TextBoxBase --Control 特殊内容控件

PasswordBox 密码框 PasswordChar 父类 Control

Button 按钮 ContentControl

2.具体代码

<Grid >
<!--Content属性设置文本 2.写在标记之间 3.内部放置一个控件作为内容-->
<!--HorizontalAlignment 水平对齐方式 VerticalAlignment 垂直对齐方式 -->
<!--Margin="61,115,0,0" 与相信元素的 左 上 右 下的边距-->
<Button Name="btnLogin" HorizontalAlignment="Left" Margin="61,115,0,0" VerticalAlignment="Top" Width="50" Content="登录" Click="BtnLogin_Click">

</Button>

<Label Content="账号:" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="35,24,0,0" HorizontalContentAlignment="Right" Width="81"/>
<!--TextWrapping 换行方式 -->
<TextBox Name="txtUName" HorizontalAlignment="Left" Height="23" Margin="138,26,0,0" TextWrapping="NoWrap" Text="admin" VerticalAlignment="Top" Width="120"/>
<Label Content="密码:" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="35,56,0,0" HorizontalContentAlignment="Right" Width="81"/>
<!--Password 密码值 PasswordChar 设置密码字符-->
<PasswordBox Name="txtUPwd" HorizontalAlignment="Left" Height="23" Margin="138,60,0,0" Password="123456" PasswordChar="*" VerticalAlignment="Top" Width="120"/>
<Button Name="btnCancel" Content="取消" HorizontalAlignment="Left" Margin="157,115,0,0" VerticalAlignment="Top" Width="50" Click="BtnCancel_Click"/>
</Grid>