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setOutputFormat called in an invalid state: 1
在编写一个简单的录像应用程序的时候,爆出例如以下异常: E MediaRecorder: setOutputFormat called in an invalid state: 1 E AndroidRuntime: java.lang.IllegalStateException E Android ...
分类:其他好文   时间:2018-02-20 11:16:32    阅读次数:571
POJ1390 Blocks 【动态规划】
Blocks Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 4173 Accepted: 1661 Description Some of you may have played a game called 'Blocks'. ...
分类:其他好文   时间:2018-02-14 20:19:54    阅读次数:193
lambda表达式 匿名函数
lambda函数是一种快速定义单行最小函数的方法,是从Lisp借鉴而来的,可以用在任何需要函数的地方。 基础 lambda语句中,冒号前是参数,可以有多个,用逗号分割;冒号右边是返回值。 lambda语句构建的是一个函数对象。 map map(…) 函数官方文档 map函数结果生成一个list,参数 ...
分类:其他好文   时间:2018-02-13 15:42:43    阅读次数:208
python 语法
4.7.3. Arbitrary Argument Lists Finally, the least frequently used option is to specify that a function can be called with an arbitrary number of argu... ...
分类:编程语言   时间:2018-02-07 00:39:41    阅读次数:190
Leetcode 636: Exclusive Time of Functions
Given the running logs of n functions that are executed in a nonpreemptive single threaded CPU, find the exclusive time of these functions. Each funct ...
分类:其他好文   时间:2018-01-28 11:28:45    阅读次数:190
Chapter 3 Underlying Technologies
Chapter 3. Underlying Technologies We can think of the Internet as a series of backbone networks that are run by international, national, are regional ...
分类:其他好文   时间:2018-01-27 13:51:49    阅读次数:174
Django中间件详解
一.中间件概念 中间件顾名思义,是介于request与response处理之间的一道处理过程,相对比较轻量级,并且在全局上改变django的输入与输出。因为改变的是全局,所以需要谨慎实用,用不好会影响到性能。我们从浏览器发出一个请求 Request,得到一个响应后的内容 HttpResponse , ...
分类:其他好文   时间:2018-01-25 19:54:55    阅读次数:1515
HDU - 3567 Eight II IDA*
Eight-puzzle, which is also called "Nine grids", comes from an old game. In this game, you are given a 3 by 3 board and 8 tiles. The tiles are numbere ...
分类:其他好文   时间:2018-01-25 17:21:47    阅读次数:165
POJ2689 Prime Distance 区间筛素数
The branch of mathematics called number theory is about properties of numbers. One of the areas that has captured the interest of number theoreticians ...
分类:其他好文   时间:2018-01-25 13:13:52    阅读次数:169
[Leetcode]376. Wiggle Subsequence
A sequence of numbers is called a wiggle sequence if the differences between successive numbers strictly alternate between positive and negative. The ...
分类:其他好文   时间:2018-01-24 16:57:18    阅读次数:150
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