安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- What does - gt; mean in Python function definitions? - Stack Overflow
funcdef: 'def' NAME parameters ['->' test] ':' suite The optional 'arrow' block was absent in Python 2 and I couldn't find any information regarding its meaning in Python 3 It turns out this is correct Python and it's accepted by the interpreter: def f(x) -> 123: return x I thought that this might be some kind of a precondition syntax, but:
- Groovy: whats the purpose of def in def x = 0?
However, variables defined using the keyword "def" are treated as local variables, that is, local to this one script Variables without the "def" in front of them are stored in a so called binding upon first use You can think of the binding as a general storage area for variables and closures that need to be available "between" scripts
- function - what is def in Java class - Stack Overflow
while googling, I find that "def" is used in python and groovy language But, I am using java So, how come it is possible to use keywords like "def" in java class? Is it possible to use other programming languages keywords in java? Please let me know in comment section, if you need any information from my end Any help would be appreciated
- Understanding Python super() with __init__() methods
class ChildA(Base): def __init__(self): Base __init__(self) class ChildB(Base): def __init__(self): super() __init__() The primary difference in this code is that in ChildB you get a layer of indirection in the __init__ with super , which uses the class in which it is defined to determine the next class's __init__ to look up in the MRO
- How to determine whether a year is a leap year? - Stack Overflow
def add2(n1, n2): print 'the result is:', n1 + n2 # prints but uses no *return* statement def add2_New(n1, n2): return n1 + n2 # returns the result to caller Now when I call them: print add2(10, 5) this gives: the result is: 15 None The first line comes form the print statement inside of add2()
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