首先，你要确定自己在快捷栏打开了流量开关
下面的所有代码，分行输入，不可以一次输入两行。
Android 11
adb shell settings put global captive_portal_mode 0
adb shell settings put global captive_portal_https_url https://www.google.cn/generate_204
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Android 10 - Android7.1.1
adb shell settings put global captive_portal_https_url https://www.google.cn/generate_204
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Android 7.1 & Android 7.0
adb shell settings delete global captive_portal_server
adb shell settings put global captive_portal_detection_enabled 0
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