python---基礎知識回顧(其他)
阿新 • • 發佈:2018-04-30
its 入棧 eve license amd bsp python3.5 help none
一:語句中的入棧順序
同其他語言(C,C++等)一樣入棧順序是右端先進行執行後入棧(python3.5中),在python2.7之前的入棧順序是左端先
Python2.7:
Python 2.7.10 (default, May 23 2015, 09:44:00) [MSC v.1500 64 bit (AMD64)] on wi n32 Type "help", "copyright", "credits" or "license" for more information. >>> ls = [1,2,3] >>> print ls,ls.reverse() #print先入棧執行,然後reverse再入棧執行 [1, 2, 3] None >>> print ls [3, 2, 1]
Python3.5:
Python 3.5.4 (v3.5.4:3f56838, Aug 8 2017, 02:17:05) [MSC v.1900 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> li = [4,3] >>> print(li,li.reverse()) #右端先入棧執行reverse,再輸出li,li.reverse()的結果None [3, 4] None >>> print(li) [3, 4]
python---基礎知識回顧(其他)