大约有 40,000 项符合查询结果(耗时:0.0628秒) [XML]

https://stackoverflow.com/ques... 

Find current directory and file's directory [duplicate]

...tive to the current working directory and is not changed by an os.chdir() call.) To get the current working directory use import os cwd = os.getcwd() Documentation references for the modules, constants and functions used above: The os and os.path modules. The __file__ constant os.path.rea...
https://stackoverflow.com/ques... 

Understanding the main method of python [duplicate]

...n other programs, and also include code to evaluate only when the file is called as a standalone script. It's important to understand that all of the code above the if __name__ line is being executed, evaluated, in both cases. It's evaluated by the interpreter when the file is imported or when it'...
https://stackoverflow.com/ques... 

Cleanest way to get last item from Python iterator

...specific default value could even be correct? If the iterator doesn't actually iterate, then an out-of-band value is more meaningful than some misleading function-specific default. – S.Lott Jan 26 '10 at 11:44 ...
https://stackoverflow.com/ques... 

Scanner vs. BufferedReader

... In currently latest JDK6 release/build (b27), the Scanner has a smaller buffer (1024 chars) as opposed to the BufferedReader (8192 chars), but it's more than sufficient. As to the choice, use the Scanner if you want to parse the file, use the BufferedReader if you want to read the file lin...
https://stackoverflow.com/ques... 

Objective-C declared @property attributes (nonatomic, copy, strong, weak)

... retaining the copy. Assign Assign is somewhat the opposite to copy. When calling the getter of an assign property, it returns a reference to the actual data. Typically you use this attribute when you have a property of primitive type (float, int, BOOL...) Retain retain is required when the attribut...
https://stackoverflow.com/ques... 

How to delete or add column in SQLITE?

...upports a limited subset of ALTER TABLE. The ALTER TABLE command in SQLite allows the user to rename a table or to add a new column to an existing table. It is not possible to rename a column, remove a column, or add or remove constraints from a table. You can: create new table as the one you ar...
https://stackoverflow.com/ques... 

When should I use the Visitor Design Pattern? [closed]

...want to make the fewest possible modifications to it. The Visitor pattern allows you to move each new operation in a suitable class, and you need to extend the hierarchy's interface only once. Let's do it. First, we define an abstract operation (the "Visitor" class in GoF) which has a method for ev...
https://www.tsingfun.com/it/os... 

【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

... .rehash = udp_v4_rehash, .get_port = udp_v4_get_port, .memory_allocated = &udp_memory_allocated, .sysctl_mem = sysctl_udp_mem, .sysctl_wmem = &sysctl_udp_wmem_min, .sysctl_rmem = &sysctl_udp_rmem_min, .obj_size = sizeof(struct udp_sock), .h.udp_table = &udp_tab...
https://stackoverflow.com/ques... 

Parsing JSON array into java.util.List with Gson

... Type can be found in what package? – Abel Callejo Aug 31 '13 at 15:18 10 ...
https://stackoverflow.com/ques... 

'uint32_t' identifier not found error

... On Windows I usually use windows types. To use it you have to include <Windows.h>. In this case uint32_t is UINT32 or just UINT. All types definitions are here: http://msdn.microsoft.com/en-us/library/windows/desktop/aa383751%28v=vs....