大约有 40,000 项符合查询结果(耗时:0.0250秒) [XML]

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What is the coolest thing you can do in

... 2011-09-02 I recently discovered that Microsoft Agent is not natively installed on Windows 7. However it is offered as a separate download here. I have not tested this so cannot verify whether it operates. share ...
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What does a \ (backslash) do in PHP (5.3+)?

... "array_slice" "assert" "boolval" "call_user_func" "call_user_func_array" "chr" "count" "defined" "doubleval" "floatval" "func_get_args" "func_num_args" "get_called_class" "get_class" "gettype" "in_array" "intval" "is_array" "is_bool" "is_double" "is_float" "is_int" "is_integer" "is_long" "is_null" ...
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What are the differences between vector and list data types in R?

... Technically lists are vectors, although very few would use that term. "list" is one of several modes, with others being "logical", "character", "numeric", "integer". What you are calling vectors are "atomic vectors" in strict R parl...
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Javascript Functions and default parameters, not working in IE and Chrome

... The code you provided won't run in Chrome < version 49: https://kangax.github.io/compat-table/es6/#test-default_function_parameters You used valid ECMAScript 2015 syntax: MDN: Default Parameters. ES2015 Spec: default value parameter initializers In ...
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How to print color in console using System.out.println?

...rts it, you can use ANSI escape codes to use color in your output. It generally works for Unix shell prompts; however, it doesn't work for Windows Command Prompt (Although, it does work for Cygwin). For example, you could define constants like these for the colors: public static final String ANSI_R...
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What is the difference between a string and a byte string?

... @orety they do have to be encoded somehow internally for exactly that reason, but this isn't expos3s to you from Python code much like you don't have to care about how floating point numbers are stored. – lvc Nov 5 '17 at 22:43 ...
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Can someone explain __all__ in Python?

I have been using Python more and more, and I keep seeing the variable __all__ set in different __init__.py files. Can someone explain what this does? ...
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How to find all the subclasses of a class given its name?

I need a working approach of getting all classes that are inherited from a base class in Python. 10 Answers ...
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Difference between left join and right join in SQL Server [duplicate]

... @SilapAliyev That's actually a very good question. Can anyone answer? :D – Ian Chu Te Jan 8 '16 at 2:46 21 ...
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计算统计特征(正态分布)函数及实例 - C/C++ - 清泛网 - 专注C/C++及内核技术

...AX_VAR; double _ave; //double _var; double _sam_stdev; double _all_stdev; double _sum; double _sum_2; int _count; double _min_v; double _max_v; StdevInfo() : _ave(0.0) //, _var(MAX_VAR) , _sam_stdev(sqrt(MAX_VAR)) , _all_stdev(0.0) , _sum(0.0) ...