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Pandas - How to flatten a hierarchical index in columns

...F', 'WBAN', 'day', 'month', 's_CD sum', 's_CL sum', 's_CNT sum', 's_PC sum', 'tempf amax', 'tempf amin', 'year'] share | improve this answer | follow ...
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How do I drop a foreign key constraint only if it exists in sql server?

... inline table-valued function IT = Internal table P = SQL Stored Procedure PC = Assembly (CLR) stored-procedure PG = Plan guide PK = PRIMARY KEY constraint R = Rule (old-style, stand-alone) RF = Replication-filter-procedure S = System base table SN = Synonym SO = Sequence object Applies to: SQL S...
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提升速度:XP注册表与驱动优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...最高的“实时”,这样可以计算机更专注更快速地处理3D动作。 5、取消Windows XP专业版中的保留带宽 由于专业版在网络上的需要,所以设定了20%的默认保留带宽,其实对于个人用户,这些保留的带宽是没有用处的,使用组策略...
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Unicode equivalents for \w and \b in Java regular expressions?

...h a J-results column for Java and a P-results column for Perl or any other PCRE-based regex engine: Regex 001A 0085 00A0 2029 J P J P J P J P \s 1 1 0 1 0 1 0 1 \pZ 0 0 0 0 1 1 ...
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Practical usage of setjmp and longjmp in C

... /* default SIGBUS handler */ } Context; extern Context * pC; extern Class Throwable; #define except_class_declare(child, parent) extern Class child #define except_class_define(child, parent) Class child = { 1, parent, #child } except_class_declare(Exception, ...
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你以为发传单真的这么简单吗?(提升成功率干货) - 更多技术 - 清泛网 - 专...

...置上;而在B点,扶梯已经快要倒头,行人这时候自然的动作就是抬头朝上看。站在这里,在行人往上看的时候和他眼神接触并报以微笑,同时递上传单,几乎没有人会拒绝。这就是利用位置和眼神接触的叠加效果。143660839945143...
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快速产品原型设计软件 - Axure RP Pro 7 (附注册码+汉化包) - 软件下载 -...

...,设计软件, Axure RP第一步:下载Axure 7.0 英文原版(请选择PC或Mac版本)  PC(windows)安装文件地址:  axure7.0下载地址:点此下载axure7.0  MAC安... Axure RP Pro 是一个产品经理必备的交互原型设计工具,能够高效率制作产品原型...
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融资千万美元后的足记要如何应对“爆款后遗症”? - 资讯 - 清泛网 - 专注C...

...想继续坚持下去。 “接下来我们对取景地内容有很大的动作,会将其全部结构化和打通,用户众包生产的内容会和电影里的人物互相串连。我们也会让摄影师去拍照片,和影视剧照片对比。”杨柳透露这个功能将在今年10月改...
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How to export a Vagrant virtual machine to transfer it

...d running (configured with a LAMP stack). I need to transfer it to another PC. How can I export it? I guess that I can get a file (or files) that can be copied to another PC, so there I can run some command to import the vagrant box. ...
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Show current assembly instruction in GDB

...───┘ multi-thre process 3718 In: __libc_start_main Line: ?? PC: 0x7ffff740d76d #3 0x00007ffff7466eb5 in _IO_do_write () from /lib/x86_64-linux-gnu/libc.so.6 #4 0x00007ffff74671ff in _IO_file_overflow () from /lib/x86_64-linux-gnu/libc.so.6 #5 0x0000000000408756 in ?? () #6 0x000...