因為站點不需要顯示這么多圖片，只需要原圖就OK了，所以就要修改下媒體設置。打開設置->媒體，將不需要的縮略圖寬度高度都設置為0就可以了。如下圖：
但是這樣設置之后，還是會生成其它分辨率的縮略圖，筆者猜測應該是主題的問題，于是就去主題內查找，筆者用的主題是themolio。后來在主題文件的functions.php中找到了這樣的代碼：
復制代碼
代碼如下:function themolio_setup() {</p> <p> /* Make Themolio available for translation.
* Translations can be added to the /languages/ directory.
* If you're building a theme based on Themolio, use a find and replace
* to change 'themolio' to the name of your theme in all the template files.
*/
load_theme_textdomain('themolio', get_template_directory().'/languages' );
add_editor_style();
add_theme_support('automatic-feed-links');
add_theme_support('post-thumbnails');</p> <p> /**
* This sets up the image size for the grid based top-down layouts (with no sidebar).
* If you change the width/height of your content,
* you will have to modify the width and height mentioned below as well
*/
add_image_size('themolio-two-col-grid-image-nosidebar',460,300,true);
add_image_size('themolio-three-col-grid-image-nosidebar',290,200,true);
add_image_size('themolio-four-col-grid-image-nosidebar',210,150,true);</p> <p> /**
* This sets up the image size for the grid based top-down layouts (with sidebar).
* If you change the width/height of your content,
* you will have to modify the width and height mentioned below as well
*/
add_image_size('themolio-two-col-grid-image-sidebar',356,250,true);
add_image_size('themolio-three-col-grid-image-sidebar',230,150,true);
add_image_size('themolio-four-col-grid-image-sidebar',171,110,true);</p> <p> /**
* This sets up the image size for the featured image.
* If you change the width/height of your content,
* you will have to modify the width and height mentioned below as well
*/
add_image_size('themolio-featured-image',800,300,true);</p> <p> register_nav_menu('primary', __('Primary Menu', 'themolio'));</p> <p> add_theme_support('post-formats', array('link', 'gallery', 'status', 'quote', 'image', 'video'));</p> <p> if(themolio_is_wp_version('3.4')) {
add_theme_support('custom-background');
} else {
add_custom_background();
}
}
其中add_image_size就是增加縮略圖設置的方法，根據需要注釋掉即可。其它主題也可以依此類推，只要搜索關鍵詞add_image_size，應當就能找到縮略圖的設置。
最后生成多張縮略圖的問題就搞定了。
友情提示
如果日后有需要縮略圖，可以在媒體->媒體庫->選擇需要的圖片點編輯->編輯圖片，然后就可以裁剪圖片了。最后報下wordpress和使用主題的版本：
wordpress是3.4.1版本
主題是Themolio，版本是1.2
