摘要：
>>> a = ["aa","bb","aa","cc","aa","dd","bb","aa","cc"] >>> a ['aa', 'bb', 'aa', 'cc', 'aa', 'dd', 'bb', 'aa', 'cc'] > 阅读全文
posted @ 2021-02-24 10:51
小鲨鱼2018
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>>> sum = 0 >>> for i in range(1,101): ## 利用for循环 sum += i >>> print(sum) 5050 >>> del sum >>> sum(list(range(1,101))) ## 利用sum函数 5050 >>> sum = 0 >>> 阅读全文
posted @ 2021-02-24 10:44
小鲨鱼2018
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1、 >>> a = [20,10,50,40,30] >>> max = a[0] >>> for i in a: if i > max: max = i >>> print(max) 50 >>> min = a[0] >>> for i in a: if i < min: min = i >> 阅读全文
posted @ 2021-02-24 10:37
小鲨鱼2018
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1、 >>> a = ["cc","aa","bb","cc","aa","dd","aa","cc","ee","dd"] >>> sorted(set(a)) ['aa', 'bb', 'cc', 'dd', 'ee'] >>> b = sorted(set(a 阅读全文
posted @ 2021-02-24 10:19
小鲨鱼2018
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1、 >>> a = [34,28,187,22,128] >>> max = a[0] >>> for i in a: ## 求最大值 if i > max: max = i >>> print(max) 187 >>> min = a[0] >>> for i in a: ## 求最小值 if 阅读全文
posted @ 2021-02-24 10:11
小鲨鱼2018
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>>> a = ["aa","aa","bb","cc","bb","aa","dd","cc","aa","aa","aa"] >>> a ['aa', 'aa', 'bb', 'cc', 'bb', 'aa', 'dd', &# 阅读全文
posted @ 2021-02-24 09:58
小鲨鱼2018
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1、 >>> a = [] >>> b = ["aa","bb","cc"] >>> if len(a) == 0: print("empty!") empty! >>> if len(b) == 0: print("empty!") 2、 >>> a = ["aa","bb","cc","dd"] 阅读全文
posted @ 2021-02-24 09:37
小鲨鱼2018
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>>> import random >>> random.randint(1,10) ## 随机抽取1-10的数字 1 >>> random.randint(1,10) 4 >>> random.randint(1,10) 9 >>> random.randint(1,100) 67 >>> ran 阅读全文
posted @ 2021-02-24 09:26
小鲨鱼2018
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>>> a = ["aa","bb","cc","aa","dd","ee","aa","aa","ff","aa"] >>> a ['aa', 'bb', 'cc', 'aa', 'dd', 'ee', 'aa', 'aa', 阅读全文
posted @ 2021-02-24 09:22
小鲨鱼2018
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摘要：
>>> a = ["aa","bb","cc","dd","ee"] >>> a ['aa', 'bb', 'cc', 'dd', 'ee'] >>> "aa" in a True >>> "dd" in a True >>> "aa" not in a False & 阅读全文
posted @ 2021-02-24 09:15
小鲨鱼2018
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