Copy a dictionary,copydictionary,L = [1,2,3]D
Copy a dictionary,copydictionary,L = [1,2,3]D
L = [1,2,3]D = {'a':1, 'b':2}A = L[:] # instead of: A = L (or list(L))B = D.copy() # instead of: B = DA[1] = 'Ni'B['c'] = 'spam'print L, Dprint A, B
- len() function,lenfunction,message = ra
- Built-in function len(): get the length of a list,buil
- next() raises a StopIteration exception tellint the for
- Assigning Consecutive Values,,print range(
- Functional Programming Tools: reduce 2,functionalreduc
- Input and Output: repr(): generate representations which
热门文章:
相关内容
- len() function,lenfunction,message = ra
- Built-in function len(): get the length of a list,built-inlen,a = [
- next() raises a StopIteration exception tellint the for loop to termi
- Assigning Consecutive Values,,print range(
- Functional Programming Tools: reduce 2,functionalreduce,# If there'
- Input and Output: repr(): generate representations which can be read
- Why Use str on a doc string?,strstring,def foo(): p
- zfill(): pads a numeric string on the left with zeros,zfillpads,# I
- Read element in a zipped list,elementzipped,L1 = [1,2,3,
- In Python any non-zero integer value is true; zero is false.,python
评论关闭