廖永睿python,print,input,字串[::-1]

w3school學習python

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#註解廖永睿2023/2/20 w3schools學python
a = "我就愛哈拉唬爛啊" #python不需要宣告變數
print(a)        #python指令結束不需要;
b = a[::-1]     #這是python特有功能
print(b)
c = a[2:7:] #字串a的0,1,2取,3,4,5沒有6
print(c)
d =a[7:2:-1]
print(d)