大约有 46,000 项符合查询结果(耗时:0.0557秒) [XML]

https://stackoverflow.com/ques... 

Add a new column to existing table in a migration

...e a specific name to avoid clashing with existing models for Laravel 3: php artisan migrate:make add_paid_to_users for Laravel 5+: php artisan make:migration add_paid_to_users_table --table=users You then need to use the Schema::table() method (as you're accessing an existing table, not crea...
https://stackoverflow.com/ques... 

Best way to clear a PHP array's values

...o I wrote it that way because of the authors question "Best way to clear a PHP array's values". It sais 'clear', not 'new instance'. Using unset will clear $foo from the symbol table. I we are talking about very large tables I'd probably recommend $foo = null; unset($foo); since that also would clea...
https://www.tsingfun.com/ilife/tech/983.html 

科大讯飞徐景明:从语音交互到人工智能 - 资讯 - 清泛网 - 专注C/C++及内核技术

...的填空题、问答题、作文等主观题,由机器改卷都将不成问题。 这两年,中国经济进入“新常态”,科大讯飞的增速不但没有降低,反而实现逆势的高速增长。2015年前三季度,科大讯飞的营业收入达16.7亿元,同比增长51.5%;净...
https://stackoverflow.com/ques... 

How to catch curl errors in PHP

I am using PHP curl functions to post data to the web server from my local machine. My code is as follows: 5 Answers ...
https://stackoverflow.com/ques... 

What's the best way to get the last element of an array without deleting it?

...nce. In this answer I will share my findings with you, benchmarked against PHP versions 5.6.38, 7.2.10 and 7.3.0RC1 (expected Dec 13 2018). The options (<<option code>>s) I will test are: option .1. $x = array_values(array_slice($array, -1))[0]; (as suggested by rolacja) option .2. $x...
https://stackoverflow.com/ques... 

How to check what user php is running as?

I need to detect if php is running as nobody. How do I do this? 16 Answers 16 ...
https://www.tsingfun.com/it/cpp/1761.html 

Linux将一个程序变成后台进程转入后台运行 - C/C++ - 清泛网 - 专注C/C++及内核技术

Linux将一个程序变成后台进程转入后台运行问题现象:Linux下写了一个无限循环处理的程序(类似Linux守护进程),不过当我们. xxx运行程序时,由于程序没有退出,终端被阻塞无法继续...问题现象: Linux下写了一个无限循环处理...
https://www.tsingfun.com/it/ai... 

App Inventor 2能编译出苹果iOS版App吗? - App Inventor 2 中文网 - 清泛...

...后于安卓版的,导致测试时会有一些不兼容或一些奇怪的问题,体验不是很好,因此 如题,首先可以明确地说目前并不支持,只支持iOS版AI伴侣进行测试,但是AI伴侣的版本更新一直都是落后于安卓版的,导致测试时会有一些...
https://bbs.tsingfun.com/thread-1305-1-1.html 

AI2 如何快捷比较两个列表的差异项,然后再根据差异的项去执行更新操作? -...

...决思路: 这时,我们就会考虑使用字典来解决这个性能问题了,回顾一下文档中字典的特点: https://www.fun123.cn/reference/blocks/dictionaries.html Q:App Inventor 2 什么情况下需要使用字典?A:列表能完成字典的绝大部分功能,不过字典...
https://bbs.tsingfun.com/thread-1953-1-1.html 

BLE UUID是对的但连接闪退:java.lang.IllegalArgumentException: UUID str...

...attAttributes.java:33) ... 10 more ---------------- 经过调查,问题出在如下报错中的“uuid string too large”上,java内置的UUID中的函数。 通过调查发现是由于ble拓展编译平台(java8),和目前appinventor with sdk34 平台(java11) 对这个函数...