array

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have been for hours strugling to understand why i am not able to do this: >>> import numpy as np >>> a = [np.empty((0,78,3)) for i in range(2)] >>> b = np.random.randint(10,size=(1,78,3)) >>> a[0] = np.append(a[0],[b],axis=0) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/lib/python2.7/site-packages/numpy/lib/function_base.py", line 5003, in append return concatenate((arr, values), axis=axis) ValueError: all the input arrays must have same number of dimensions >>> a is a list with s empty numpy

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: A numpy matrix can be reshaped into a vector using reshape function with parameter -1. But I don't know what -1 means here. For example: a = numpy . matrix ([[ 1 , 2 , 3 , 4 ], [ 5 , 6 , 7 , 8 ]]) b = numpy . reshape ( a , - 1 ) The result of b is: matrix([[1, 2, 3, 4, 5, 6, 7, 8]]) Does anyone know what -1 means here? And it seems python assign -1 several meanings, such as: array[-1] means the last element. Can you give an explanation? 回答1: The criterion to satisfy for providing the new shape is that 'The new shape should be

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have 4 checkboxes, when selected they should concatenate onto a single string displayed on a Jlabel. It was working before sort-of, not sure whatI did to break it, now I get array exception out of bounds errors. This is the update() method being run whenever a checkbox is interacted with. http://pastebin.com/tbSpx7jA It's been answered thanks all, just messed up my initial array declaration. 回答1: It looks like you're iterating to an index that does not exist: for (int j = 0; j <= oslist2.length; j++) should be for (int j = 0; j < oslist2

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to make the cancel function work for my array it works for a simple input box but Array(InputBox( does not like it very much. Working code. If strVarValue = vbNullString Then MsgBox ("User canceled!") WScript.Quit End If What I need help with strIPAddress = Array(InputBox("IP address")) If strIPAddress = vbNullString Then MsgBox ("User canceled!") WScript.Quit End If Doesn't like the Array hence why I'm getting type mismatch. 回答1: Do the conversion only if the user did not press "Cancel": userInput = InputBox("IP address") If

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Why does the code void fcn(int *twoDArrayPtr, const int dim1, const int dim2) { int (*array)[dim2] = reinterpret_cast<int (*)[dim2]>(twoDArrayPtr); } int main() { return 0; } generate the compiler error error: cannot initialize a variable of type 'int (*)[dim2]' with an rvalue of type 'int (*)[dim2]' The types are the same, so I'd think the assignment can be performed. Since int (*)[dim2] is a pointer to an array of size dim2 and as such could be a pointer to a bunch of arrays of size dim2 in contiguous memory indexable by the pointer, I

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Hi guys am fighting with a syntax error of my sql, saying exactly: "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax" Even though the code is working and doing what I wanted I still get the syntax error info! and here is the code: $person_id =mysql_query("SELECT person_id FROM person WHERE firstname='$array[0]' AND lastname='$array[1]' AND city='$array[2]' ") or die(mysql_error()); if (mysql_num_rows($person_id) ) { print 'user is already in table'; } else { mysql_query

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I trying to map below JSON to Swagger YAML in swagger editor 2.0 and I am not sure how to set mixed array types into my schema { "obj1": [ "string data", 1 ] } Now, my swagger definition has, schema: object1: type: array items: type: string 回答1: OpenAPI / Swagger 2.0 do not support mixed-type array and parameters. Mixed types will be supported in the next version, OpenAPI 3.0, using the anyOf and oneOf keywords: definitions: MyObject: type: object properties: obj1: type: array items: oneOf: - type: string - type: integer 文章来源: How to create

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This may be simple to you people but as i am new to java, so i want know actually what is going on in the following part? if (args.length > 0) { file = args[0]; } public class DomTest1 { public static void main(String[] args) { String file = "test1.xml"; if (args.length > 0) { file = args[0]; } } } 回答1: Those are called command line arguments , which you get as a String array in your program. Here is the Oracle tutorial A Java application can accept any number of arguments from the command line. This allows the user to specify configuration

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have two arrays of the same length ($search_type, $search_term) . I want to remove any duplicates in the sense of there being searches that have the same type and search term (ie $search_type[$a] == $search_type[$b] && $search_term[$a] == $search_term[$b] ). I'm aware that I could write this using loops, was wondering if there's a simpler (but equally efficient) way that takes advantage of built in functions? 回答1: Try either array_intersect() which will take two arrays and return an array where a value in array A exists in array

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a few UILabels, any one of which will update according to the index of an NSArray index they represent. I thought of selecting them by their tag self.displayLabel.tag = myArray[index]; but that changes the tag value to whatever my array is holding at the moment Using a dictionary for whatever tricks it offers instead of an NSArray doesn't help because i still have to select the correct matching label. This is the effect i want to achieve. self.|mySelectedLabel|.text = myArray[index]; what should i put in |mySelectedLabel| to get the