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for i in range(1,10,2): print(i) 隔两个 阅读全文
posted @ 2020-12-26 19:55
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np.hstack & np.vstack np.Repeat() ra2 = np.repeat(array,1,10) repmat 阅读全文
posted @ 2020-12-26 19:28
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np.hstack & np.vstack np.Repeat() ra2 = np.repeat(array,1,10) repmat 阅读全文
posted @ 2020-12-26 19:29
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m,n=100,3 import numpy as np array = np.ones((m,n)) array = np.zeros((m,n)) 阅读全文
posted @ 2020-12-26 19:06
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pickle # 存储变量的文件的名字filename = 'Day3-Data.data'if os.path.exists(filename): print("Already exist") with open(filename, 'r... 阅读全文
posted @ 2020-12-26 19:06
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import os os.path.exists os.path.exists(filename) 阅读全文
posted @ 2020-12-26 18:45
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python如何保存变量 https://blog.csdn.net/jining11/article/details/81435899 filename = 'shoplist.data'# 以二进制写模式打开目标文件f = open(filen... 阅读全文
posted @ 2020-12-26 17:31
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len(re.findall(value,password)) 或者用“”.count() print(a.count(b)) #2 阅读全文
posted @ 2020-12-26 17:06
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import requests#通过url获取数据def get_page(url): #requests.get 自带 json.load page = requests.get(url) page = page.content #将... 阅读全文
posted @ 2020-12-26 13:41
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python 求两个list的交集 r = list(set(data2).intersection(set(data)))print(r[0]*r[1]) 阅读全文
posted @ 2020-12-26 13:10
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写个for循环吧 data2= []for i in data: data2.append(i-10) 阅读全文
posted @ 2020-12-26 12:59
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