打开手机微信，点击微信搜索框搜索“乘车码”，打开乘车码小程序，选择要开通的城市名称，勾选同意使用协议，然后再点击开通乘车码，获取本地的乘车码，坐公交车时对着刷卡的地方扫描就可以了。具体操作方法如下：
1、登录微信。
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2、找寻”小程序“。登录微信之后，点击“发现“的功能选项，进入页面之后，下拉页面，在最下方可以看到”小程序“的功能选项。
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3、打开”小程序“。找到小程序的功能选项之后，点击打开，可以看到之前自己微信上面使用过的小程序。
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4、搜索乘车码。在小程序页面最上方有一个搜索的图标，点击打开出入乘车码，之后点击搜索。
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5、打开腾讯乘车码。搜索到之后，可以看到如下的操作界面，选择刷码乘车这一功能选项，点击打开。
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6、获取本地的乘车码。点击刷码乘车之后就会直接加载进入扫码乘车的小程序界面，会自动获取本地的乘车码。
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7、使用乘车码支付。上车之后在车门附近公交卡刷卡的地方可以看到一个扫码支付的扫描器，将小程序中的二维码放置在扫描口就可以自动支付车费了。
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注意事项：
1、根据步骤操作，否则容易导致不成功。
2、上车刷码的时候，要听到“吱”一声，提示刷卡成功，否则要重新刷码。