w3schools字串str, format, len, slicing[::]

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Python程式碼

b = "劉德華大帥哥!" #python字串單或雙引號都可
#    0 1 2 3 4 5 6
#       -6-5-4-3-2-1
print("字串長度:"+str(len(b)))
print("反過來:"+b[::-1])
print(b[:3]) #b字串的0,1,2
print(b[-4:-1])
print(b[-8:-4])
x = '火鍋'
y = 9999
myorder = "我希望 {2} 陪我去吃 {0} 他付錢 {1}."
print(myorder.format(x,y,b))
# format的參數        0,1,2

字串的方法列表