{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/2\/2c\/Delete-All-Media-on-WhatsApp-Step-7-Version-4.jpg\/v4-460px-Delete-All-Media-on-WhatsApp-Step-7-Version-4.jpg","bigUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/2\/2c\/Delete-All-Media-on-WhatsApp-Step-7-Version-4.jpg\/v4-760px-Delete-All-Media-on-WhatsApp-Step-7-Version-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":760,"bigHeight":570}1打开WhatsApp。打开WhatsApp的“设置”页面。{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/c\/c5\/Delete-All-Media-on-WhatsApp-Step-1-Version-2.jpg\/v4-460px-Delete-All-Media-on-WhatsApp-Step-1-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/c\/c5\/Delete-All-Media-on-WhatsApp-Step-1-Version-2.jpg\/v4-760px-Delete-All-Media-on-WhatsApp-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":760,"bigHeight":570}1打开WhatsApp。