應該是妳沒有開啟加好友要通過驗證。
如何開啟好友驗證功能？
打開微信，點擊"設置"。
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在設置界面中選擇"隱私"。
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將"加我為朋友時需要驗證"的開關打開即可。
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參考資料：
/kf.qq.com/faq/161223MnERJb161223vUviEv.html"target="_blank"title="只支持選中壹個鏈接時生效">微信：幫助與反饋：微信設置被添加好友需驗證