:在iPhone上删除所有对话{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/e\/e0\/Delete-All-Media-on-WhatsApp-Step-11-Version-2.jpg\/v4-460px-Delete-All-Media-on-WhatsApp-Step-11-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/e\/e0\/Delete-All-Media-on-WhatsApp-Step-11-Version-2.jpg\/v4-760px-Delete-All-Media-on-WhatsApp-Step-11-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":760,"bigHeight":570}1打开WhatsApp。