Python standard library: Built-in functions map (function, iterable, ...)

This function functions as a function ,iterable Each item of the object as a parameter, and then calculates the output iteration sub - iterator. If function object functions can enter multiple parameters, then it can be followed by multiple objects that can be iterated. When multiple iterations of an object, the shortest object is judged by the result of the run.

Example:

#map () x = Range (Ten) print (list (map (hex, x)) Print (list (map (lambda y:y * 2 + 1, x)) Print (list (map (lambda y, z:y * 2 + Z , x, x)))

The resulting output is as follows:

[' 0x0 ', ' 0x1 ', ' 0x2 ', ' 0x3 ', ' 0x4 ', ' 0x5 ', ' 0x6 ', ' 0x7 ', ' 0x8 ', ' 0x9 ']

[1, 3, 5, 7, 9, 11, 13, 15, 17, 19]

[0, 3, 6, 9, 12, 15, 18, 21, 24, 27]

Cai Junsheng qq:9073204 Shenzhen

Python standard library: Built-in functions map (function, iterable, ...)