07 2019 档案
摘要：from selenium import webdriver browser = webdriver.Chrome(executable_path='F:/chromedriver/chromedriver_win32/chromedriver.exe') url = 'https://www.baidu.com/' browser.get(url) text = browser.page_...
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摘要：python+selenium浏览器常用操作（一） 转载 https://www.cnblogs.com/cxh2159/p/11051587.html 1、导入selenium自定义的webdriver、后续可通过调用此协议启动各大浏览器 from selenium import webdrive
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摘要：记得在代码顶部加上python的环境路径 (#!/usr/bin/python) linux环境下需要找到python解释器 1. chmod -R 777 x.py 给代码文件赋予权限 2. chown 用户(hadoop) x.py 给代码转换用户 3. chgrp 用户(hadoop) x.p
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摘要：import numpy as np import matplotlib.pyplot as plt a = [1,2,3,4,5,6] b = [3,8,5,4,5,8] c = np.array([3,4,5]) d = np.array([2,4,6]) plt.plot(a,b,'r-') #折线图 plt.plot(c,d,'r--',lw=10) #lw为线条宽...
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摘要：import tensorflow as tf #矩阵类型 myzero = tf.zeros([3,5]) #定义3行5列的0矩阵 myones = tf.ones([2,3]) #定义2行3列的矩阵 myfill = tf.fill([3,3],15) #...
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摘要：import tensorflow as tf #placeholder数据类型 a = tf.placeholder(tf.float32) b = tf.placeholder(tf.float32) myadd = tf.add(a,b) with tf.Session() as sess: print(sess.run(myadd,feed_dict={a:35,b:20}))...
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摘要：import tensorflow as tf sess = tf.Session() #创建会话 a = tf.constant(3) b = tf.constant(5) #常量数据 c = tf.Variable(9) # 加减乘除操作 myadd = tf.add(a,b) mysub = tf.subtract(a,b) mymul = tf.multiply(a,...
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摘要：import tensorflow as tf data1 = tf.constant(25,dtype='int16') data2 = tf.Variable(3,name='data2') print(data1) print(data2) # sess = tf.Session() # init = tf.global_variables_initializer() # sess.ru...
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