环境:EntityFrameWorkCodeFirst+MySql今天在提交一个外键字段的修改时报“Parameter '@columnType' must be defined.”google了一下解决方法在链接字符串中加入这样一句话“;Allow User Variables=True”就可以了...
                            
                            
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其他好文   时间:
2014-11-23 12:56:06   
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246
                             
                    
                        
                            
                            
                                Given a graph (V,E) where V is a set of nodes and E is a set of arcs in VxV, and an
ordering on the elements in V, then the bandwidth of a node 
v is defined as the maximum distance in the ordering ...
                            
                            
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其他好文   时间:
2014-11-21 23:21:51   
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285
                             
                    
                        
                            
                            
                                Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tree in which the depth...
                            
                            
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其他好文   时间:
2014-11-21 21:41:20   
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252
                             
                    
                        
                            
                            
                                1.#ifdef和#if defined
    注意两者都有个define的作用,区别在于使用方式上。前者的通常用法是:
#ifdef  X
   ....
#else
   ....
#endif
    只能在两者中选择是否有定义。对于后者,常用法是:
#if defined x1
   ....
#elif defined x2
   ....
#elif de...
                            
                            
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其他好文   时间:
2014-11-21 16:21:03   
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131
                             
                    
                        
                            
                            
                                Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tree in which the depth...
                            
                            
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其他好文   时间:
2014-11-20 13:39:29   
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113
                             
                    
                        
                            
                            
                                Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tree in which the depth...
                            
                            
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其他好文   时间:
2014-11-20 01:16:54   
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172
                             
                    
                        
                            
                            
                                Fialdcase 1: let can work in it's block{ let a = 10; var b = 1;}a // ReferenceError: a is not defined.b //1Case 2: Let has no "Hosting" Problemf...
                            
                            
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其他好文   时间:
2014-11-19 23:56:04   
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321
                             
                    
                        
                            
                            
                                SignalStrength :1.publicintgetGsmSignalStrength() :GSM Signal Strength, valid values are (0-31, 99) as defined in TS 27.007 8.52.publicintgetGsmBitErr...
                            
                            
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移动开发   时间:
2014-11-19 10:25:30   
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196
                             
                    
                        
                            
                            
                                Hough 圆变换 和 Hough 直线变换原理相同,只是参数空间不同 : In the line detection case, a line was defined by two parameters . In the circle case, we need three parameters ...
                            
                            
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其他好文   时间:
2014-11-19 00:14:29   
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198
                             
                    
                        
                            
                            
                                //////////////////////////scbarg.h//////////////////////Download by http://www.NewXing.com#if !defined(__SCBARG_H__)#define __SCBARG_H__ #if _MSC_VER ...
                            
                            
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其他好文   时间:
2014-11-18 23:10:28   
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267