Functional Programming Tools: reduce 2，functionalreduce,# If there's
Functional Programming Tools: reduce 2，functionalreduce,# If there's
# If there's only one item in the sequence, its value is returned; if the sequence is # empty, an exception is raised.# A third argument can be passed to indicate the starting value. In this case the # starting value is returned for an empty sequence, and the function is first applied # to the starting value and the first sequence item, then to the result and the next # item, and so on. For example,def sum(seq): def add(x,y): return x+y return reduce(add, seq, 0)print sum(range(1, 11))print sum([])
- Input and Output: repr(): generate representations which
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- zfill(): pads a numeric string on the left with zeros，
- Read element in a zipped list，elementzipped,L1 = [1,2,
- In Python any non-zero integer value is true; zero is fa
- Complex Number Multiply: the Complex part，complexmulti
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- Input and Output: repr(): generate representations which can be read
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