A. 怎麼改微信號
可以在微信設置里修改自己的微信賬號，但是只有在之前未設置微信號的，可以更改一次。已經修改過的無法更改，只能修改昵稱。
修改方法：
1.首先打開微信。
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2.點擊頁面右下角「我」。
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3.點擊自己的「微信頭像」。
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4.點擊「微信號」。
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5.然後你就可以修改自己的微信號了。
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拓展資料：
微信號，是登錄微信時使用的賬號，可以通過手機網路免費發送語音簡訊、視頻、圖片和文字，可單聊及群聊。微信號是登錄微信時使用的賬號，支持6-20個字母、數字。
B. 怎麼更改微信號
更改微信號需要登錄自己的微信賬號，然後進入個人中心，再點擊微信號選項，在彈出的框中編輯新的微信號即可，其具體操作方法如下：
1、在手機中找到微信app，點擊打開。
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2、找到右下角我的。
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3、然後在頁面頂部點擊自己的微信頭像。
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4、進入個人信息後，在微信號後面有個小箭頭，點擊進入。
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5、這時候你就可以刪除舊的微信號，填寫新的微信號了。
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6、需要注意的是微信號要根據提示說明進行設置，完成後點擊保存即可完成微信號的修改。
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注意事項：
1）修改的微信號必須全平台唯一，不能與個人微信號或其他公眾平台設置微信號重復。
2）可以使用6~20個字母、數字、下劃線和減號，必須以字母開頭。
3）一個自然年（1月1日至12月31日）內允許修改1次，若該帳號之前未設置過微信號，此次設置後待下一自然年才能修改。