12 2018 档案
摘要：On a table are N cards, with a positive integer printed on the front and back of each card (possibly different). We flip any number of cards, and afte
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摘要：After install the Nginx on AWS instance, and visit your public ip address, you might see the following: This site can't be reached xxx.xxx.xx take too
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摘要：Given a string S and a character C, return an array of integers representing the shortest distance from the character C in the string. Example 1: Inpu
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摘要：Given a list of words, we may encode it by writing a reference string S and a list of indexes A. For example, if the list of words is ["time", "me", "
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摘要：Given a paragraph and a list of banned words, return the most frequent word that is not in the list of banned words. It is guaranteed there is at leas
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摘要：使用MongoDB的时候，如果遇到下面这个错误： 一般来说是MongoDB数据库的Model没有链上，在YourScript.js的开头，一般下面几行不能少： 然后yourModel.js的内容可以为：
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摘要：Go to Elastic Beanstalk -> Configuration -> Security -> Virtual machine permissions -> EC2 key pair. Choose your key pair. If you do not have one, The
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摘要：当你想给微信公众号（不是测试账号）自定义菜单创建接口，遇到如下错误： 很可能的原因是你并没有自定义菜单接口的权限，去【开发】->【接口权限】 界面去查看“自定义菜单”的权限，如果显示 “未获得”，那么恭喜你，用不了。而显示的获得条件是【1】订阅号必须通过微信认证 【2】服务号自动获得。但是坑爹的是，
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