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[leetcode]Read N Characters Given Read4 II - Call multiple times
调用多次readN,所以要重复使用internal buffer """ The read4 API is already defined for you. @param buf, a list of characters @return an integer def read4(buf): # B ...
分类:其他好文   时间:2020-02-07 18:42:43    阅读次数:71
[leetcode]Read N Characters Given Read4
先用read4拷贝到buf4,然后从buf4里读: """ The read4 API is already defined for you. @param buf, a list of characters @return an integer def read4(buf): # Below is ...
分类:其他好文   时间:2020-02-07 16:35:00    阅读次数:78
Jmeter配置元件User Defined Variables与前置处理器User Parameters的区别
区别在于: 前置处理器在请求之前会执行,而配置元件只是取值 如下例: 1、配置元件 2、前置处理器 两个变量的值一样,都是由函数助手取值组成,在java请求运行前后结果如下: 运行前: 运行后: 说明:前置处理器变量的值会执行得到结果,而配置元件不会执行 所以,在编写脚本时,如果是固定的值,可以用配 ...
分类:其他好文   时间:2020-02-06 12:17:52    阅读次数:75
Go语言 nil:空值/零值
nil 标识符是不能比较的 package main import "fmt" func main() { fmt.Println(nil == nil) } .\nil.go:6:18: invalid operation: nil == nil (operator == not defined ...
分类:编程语言   时间:2020-02-04 18:41:08    阅读次数:87
7-7 Complete Binary Search Tree (30分)
A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes ...
分类:其他好文   时间:2020-02-04 15:45:09    阅读次数:77
ES6新特性——let
作用域 与var不同,let的作用域只在声明的let语句所在的代码块,像这样 { let a = 10; var b = 1; } a // ReferenceError: a is not defined. b // 1 在for语句中,如果用 var = i 计数,则 i 是一个全局变量,每次循 ...
分类:其他好文   时间:2020-02-03 19:00:02    阅读次数:68
PAT Advanced 1115 Counting Nodes in a BST (30分)
A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes ...
分类:其他好文   时间:2020-02-01 19:43:59    阅读次数:85
Tomcat 8 Invalid character found in the request target. The valid characters are defined in RFC 3986
终极解决方案: 从错误日志中看到 负责解析http请求的是 ,它对请求对URL中对字符做了限制,具体代码如下: IS_NOT_REQUEST_TARGET[]中定义了一堆not request target 转换过来就是以下字符(对应10进制ASCII),也就是URL中不能包含的特殊字符: 我碰到这 ...
分类:其他好文   时间:2020-01-30 19:32:02    阅读次数:111
PAT Advanced 1063 Set Similarity (25分)(STL)
Given two sets of integers, the similarity of the sets is defined to be /, where N?c?? is the number of distinct common numbers shared by the two sets ...
分类:其他好文   时间:2020-01-29 21:54:49    阅读次数:84
PAT Advanced 1050 String Subtraction (20) [Hash散列]
题目 Given two strings S1 and S2, S = S1 – S2 is defined to be the remaining string afer taking all the characters in S2 from S1. Your task is simply to ...
分类:其他好文   时间:2020-01-28 21:02:59    阅读次数:65
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