operand

问题 My problem is that program is not reading codes as i intended "he" would. I have if (hero.getPos() == (6 | 11 | 16)) { move = new Object[] {"Up", "Right", "Left"}; } else { move = new Object[] {"Up", "Down", "Right", "Left"}; } When hero position is 6, the program still goes to else. Why is that? Is it because of operands? If yes, how should i change it? 回答1: Use: if (hero.getPos() == 6 || hero.getPos() == 11 || hero.getPos() == 16)) { This will do what you want. What you did is comparing

问题 This question already has answers here : Operand Should Contain 1 Column - MySQL NOT IN (3 answers) Closed 5 years ago . I could find a lot of similar questions but no real solution for my problem. My SQL query: UPDATE ADRESSEN SET EMAIL = 0 WHERE ID = (SELECT ID, COUNT(ID) AS COUNTER FROM EIGENSCHAFTEN WHERE Kategorie = "BOUNCE" GROUP BY ID HAVING COUNTER = 1) The error code I receive is #1241 - Operand should contain 1 column(s) If I just use the query in the parentheses it works and the

问题 long time reader, first time writer. I searched around on google and stack overflow, but wasn't really able to find a general answer to this question. I am getting an "unsupported operand type(s) for *: 'numpy.ndarray' and 'numpy.float64'" error in python 2.7.3 using numpy 1.6.2. The error comes from multiplying a numpy array and a numpy float, but it doesn't happen every time. For example: x = np.tan(1) # numpy.float64 y = np.array([0,1,2,3]) # numpy.ndarray np.multiply(x,y) # works no

问题 I'm new to python (PYTHON 3.4.2) and I'm trying to make a program that adds and divides to find the average or the mean of a user's input, but I can't figure out how to add the numbers I receive. When I open the program at the command prompt it accepts the numbers I input and would print it also if I use a print function, but it will not sum the numbers up. I receive this error: TypeError: unsupported operand type(s) for +: 'int' and 'str' My code is below: #Take the user's input numbers =

问题 I'm trying to understand GAS's behavior of .code16. From the manual, it seems in 16-bit section, for 32-bit operands or instructions, a 66H operand override prefix will be produced for the instruction encoding. Does that mean .code16 movw %eax, %ebx is legal in such mode? Then the code cannot run on 16-bit processor? 回答1: These are legal instructions for 80386+. Starting with the 80386 we can use operandsize- and addresssize- override prefixes. Those prefixes can be used in combination with

问题 I'm rather new to coding and have been building a code to interpolate a cubic spline, but I am stuck on the last equation do the following error: _"invalid operands to binary ^ (have 'double' and 'double')|" The problem is in the last bit of the code with "population =" for the two first lines. I would really appreciate it if someone could point me in the right direction. #include <stdio.h> main () { int x; int y; double stats[10][2]; double gpp[8][9] = {0}; double gppr[10] = {0}; double year

问题 Im making an insertion sort code in SML, here it is fun compare(x:real, y:real, F) = F(x, y); fun isEqual(x:real, y:real) = ((x <= y) andalso (x >= y)); fun rinsert(x: real, [], F) = [x] |rinsert(x, (y::ys), F) = if isEqual(x, y) then rinsert (x, ys, F) else if compare(x, y, F) then x::y::ys else y::(rinsert (x, ys, F)); fun rinsort([], F) = [] |rinsort(x::xs, F) = rinsert(x, (rinsort(xs, F), F)); However, on running it i get this error val isEqual = fn : real * real -> bool val rinsert = fn

问题 So I have this list of tuples(n=2), witch I'm supposed to "unzip" and by that create a new list like so: for list of tuples like this val it = (1,"one") :: (2,"two") :: nil : (int,string) alterlist, the unzip function will create a list like so [(1,2),("one", "two")]. This is what I got so far: datatype ('a, 'b) alterlist = nil | :: of ('a*'b) * ('a, 'b) alterlist; infixr 5 :: fun build4(x, one, y, two) = (x,one)::((y,two)::nil); fun unzip(alterlist) = let fun extract([], i) = [] | extract((x

问题 I need to complete a task where I am given a list of names and grades for each name and I need to sort these out by highest to lowest grade. However if two names have the same grades then sort those names out in alphabetical order. This is the problem I am presented with. I am required to keep the sort function on one line. a = [('Tim Jones', 54), ('Anna Smith', 56), ('Barry Thomas', 88)] sum(sorted(a,key=lambda x: x[1])) Traceback (most recent call last): File "<stdin>", line 1, in <module>

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . Hey guys I am working on a python program and I keep getting errors returned from the loop which is supposed to just reprompt the user to enter a number. The problem I am having is that it keeps returning a nonetype which cannot be used to operate on which I need to do in on of the other functions any help is