微信密码锁可以在微信的手机客户端进行操作，通过微信的收付款功能，在里面进行密码锁的设置即可，以iPhone7Plus手机为例，具体步骤如下：
1、打开微信后点击右上角的图标再点击【收付款】。
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2、然后我们点击收款码右上角的【三个小点】。
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3、接着在下面弹出的选项中点击【暂停使用】。
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4、之后我们在弹出的窗口点击【设置安全锁】。
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5、现在我们点击选择【手势密码解锁】。
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6、这时我们输入自己支付密码验证身份。
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7、最后我们在页面上设置手势密码锁图案，这样下次我们是有付款码的时候就要解锁图案才会显示付款码。
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注意事项：
这里使用的是苹果手机作为演示，安卓手机的操作办法是相同的。