Placeholder Image. You place a picture of any size in the word processing file where you want to add a control, and when the website is generated, the control that you specify is automatically added to the placeholder picture, and the placeholder picture is deleted. What controls to add specifically are determined by the placeholder picture ALT command. You can use the Command Generator to generate the ALT command and then copy it to the ALT attribute of the placeholder image. Note that the pictures in all word processing files have an ALT attribute.

占位图片。您在字处理文件内需要添加控件的地方放一张任意大小的图片，在网站生成时，系统将在该占位图片处自动添加您指定的控件， 同时删除该占位图片。具体添加何种控件，由占位图片ALT命令决定。您可以使用命令生成器生成ALT命令然后复制到该占位图片的ALT属性中。注意，所有字处理文件中的图片都有ALT属性。

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