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作業2018-12-5

6.定義一個字串"python的創始人是Guido",試分別打印出"Guido","odiuG", "ph的人uo"

a = "python的創始人是Guido"
print(a[11:])
print(a[-1:-6:-1])
print(a[::3])

7.有字串"你"和"最帥",如何得到字串"你最帥",又如何得到字串"你最帥最帥最帥" 

a = ""
b = "最帥"
print(a + b)
print(a + b * 3)

2. 像121 11 111等對稱的整型數稱為迴文整型數,隨機產生1000以內的10個整型數,列印其中的迴文整型數

import
random i = 0 for i in range(10): a = random.randint(1, 1000) if a > 99: if a%10 == a//100: print(a) else: if a%10 == a//10: print(a)

 

4. 公雞5文錢1只,母雞3文錢1只,小雞3只1文錢,用100文錢買100只雞,可以怎麼買?

"""
定義公雞個數為:a
定義母雞個數為:b
小雞個數位:c
"""
a = 0
b = 0
c = 0
for a in range(21):
    
for b in range(34): for c in range(300): if 5*a+3*b+c/3==100 and a+b+c==100: print(a, b, c, )

 

5. 使用input()讀入一個字串,統計字串中字母的個數,和數字的個數

a = str(input("請輸入一個字串:"))
i = 1
shuzi = 0
zimu = 0
for i in range (len(a)):
    c = (a [i:i+1])
    if c >= "0" and c <= "
9": shuzi += 1 else: c = (a[i:i+1]) c >= "a" and c <= "z" zimu +=1 print(shuzi) print(zimu)

已知1990.1.1是星期一,使用者輸入一個1990後的任意年月,計算其1號星期幾
參考命令cal 12 2018