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CORS问题的处理策略
1、问题现象 Access to XMLHttpRequest at 'http://yyyy' from origin 'http://zzzz' has been blocked by CORS policy: Request header field xxxx is not allowed b ...
分类:其他好文   时间:2020-06-24 17:47:18    阅读次数:66
HDU4283 You Are the One
题目:You Are the One 网址:http://acm.hdu.edu.cn/showproblem.php?pid=4283 Problem Description The TV shows such as You Are the One has been very popular. I ...
分类:其他好文   时间:2020-06-20 23:47:01    阅读次数:57
网校提交第三方出现跨域问题
has been blocked by CORS policy: Request header field x-csrf-token is not allowed by Access-Control-Allow-Headers in preflight response. 因为main.js有“se ...
分类:其他好文   时间:2020-06-20 13:56:53    阅读次数:45
var与let、const的区别
var与let、const 一、var声明的变量会挂载在window上,而let和const声明的变量不会: var a = 100;console.log(a,window.a); // 100 100let b = 10;console.log(b,window.b); // 10 undefi ...
分类:其他好文   时间:2020-06-19 20:41:15    阅读次数:46
Delphi XE10 IdFtp 错误:No FTP list parsers have been registered
Delphi XE10 IdFtp 错误:No FTP list parsers have been registered 错误来源:idftp.DirectoryListing 属性 解决方式: uses IdAllFTPListParsers //FTP列表解析器 单元内容: uses IdFT ...
分类:Windows程序   时间:2020-06-16 13:02:31    阅读次数:107
Memory integrity 导致 A driver can't load on this device
夜神模拟器无法使用 https://support.microsoft.com/en-us/help/4526424/windows-10-driver-cant-load-on-this-device Memory integrity You are receiving this message ...
分类:其他好文   时间:2020-06-15 13:48:50    阅读次数:181
Apache Commons Pool
对于commons pool就不作介绍了,文章分两部分:源码分析,例子。 源码分析 在Commons pool之中主要有几个概念: ObjectPool:提供所有对象的存取管理。 PooledObject:池化的对象,是对对象的一个包装,加上了对象的一些其他信息,包括对象的状态(已用、空闲),对象的 ...
分类:Web程序   时间:2020-06-11 16:55:39    阅读次数:63
Mongoose Schema hasn't been registered for model
报错模型未注册。 示例 const Goods = require('../../model/admin/Goods');//先引入你需要的关联模型 const res = await ctx.mongoose.find().populate({ path: 'Goods ', model: Goo ...
分类:其他好文   时间:2020-06-09 18:13:48    阅读次数:65
[LC] 946. Validate Stack Sequences
Given two sequences pushed and popped with distinct values, return true if and only if this could have been the result of a sequence of push and pop o ...
分类:其他好文   时间:2020-06-08 00:29:09    阅读次数:53
writing: Farewell my princess
adapted from poj 2482 Fleeting time does not blur the memory of you. Has it really been three years since i first saw you? I still remember, vividly, ...
分类:其他好文   时间:2020-06-03 17:25:52    阅读次数:89
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