If you aren't currently in a chat with another contact, open or create one before proceeding. If you want to take or select a photo to send to the chat, do the following:  Tap the camera-shaped icon to the right of the text box. Tap OK or ALLOW when prompted two or three times. Select a photo or take a photo. Add a caption by entering one in the "Add a caption..." text box if necessary. Tap the "Send" icon. It's in the bottom-left corner of the screen. A pop-up menu will appear. On Android, you'll tap the icon on the right side of the chat box. Tap one of the following options depending on what you want to send to the chat:   Document — Allows you to choose a document, such as a PDF, from your smartphone's storage.  Location — Allows you to send a map of your current location.  Contact — Allows you to send a contact's information.  Audio (Android only) — Allows you to send an audio clip. Depending on what you chose in the last step, this process will vary:   Document — Go to the location of the document you want to send, select the document, and tap Send.  Location — Allow any permissions your smartphone requests, then tap Send Your Current Location to send the map.  Contact — Select a contact, confirm their details, and tap Send.  Audio — Select the audio you want to send, then tap OK. ormat your chat text. You can use different text tags to apply formatting, such as bolding, to message text:   Bold — Place an asterisk on either side of the text you want to bold (e.g., *hello* becomes hello).  Italics — Place an underscore on either side of the text you want to italicize (e.g., _goodbye_ becomes goodbye).  Strikethrough — Place a tilde on either side of the text you want to cross out (e.g., ~pineapple belongs on pizza~).  Code — Place three right-facing accent marks on either side of the text you want to use (e.g., ```I am a robot``` becomes I am a robot).

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Write a summary of the previous text in Chinese:
打开一个对话。 发送照片。 点按屏幕左下角的＋。 选择要发送的文件类型。 发送文档、联系人信息或位置。 编辑文字格式。