zhourunan

Jupyter在用matplotlib画图的时候会产生图片不显示在页面中解决方法：%matplotlib inlineimport matplotlib.pyplot as pltplt.plot()plt.show()

镜像安装gensim

常用符号：常用方法：

1. 安装numpy库：pip install  numpy 2. 将numpy函数库中的所有模块引入：from numpy import *3. 构造一个4*4的随机数组：randArray = random.rand(4,4)print(randArray)4.mat()函数：将数组转化为矩阵：randMat = mat(random.rand(4,4))print(randMat)5. ...

print(8 == 8)print(8 != 8)

list1 = []list2 = []list1.append('a')list1.append('b')list1.append('c')print(list1)list2.append(1.0)list2.append(2.0)list2.append(3.0)list2.append(4.0)list2.append(5.0)print(list2)a = list...

months = []print(type(months))months.append(1)months.append('Ja')months.append("Fe")print(months)

str_eight = str(8)print(type(str_eight))int_eight = int(str_eight) #转换成int型print(type(int_eight))

str_test = 'China'int_test = 123float_test = 122.5print(type(str_test))print(type(int_test))print(type(float_test))

def printHello(): #printHello函数名 ()无参数 print('hello python')# 运行函数，直接调函数名printHello()def add(a,b): #带有参数 return(a+b)print(add(1,2))def printNum(): for i in range(0,10): print(i)...

f = open("F:\python2.txt","w")f.write('123456')f.write('\n') #换行f.write('45678')f.close()

f = open("F:\python.txt","r") #路径g = f.read()print(g)f.close()

cities = ['AC','AD','AE']for city in cities: print(city)i = 0while i < 3: i = i+1 print(i)for i in range(10): print(i)cities = [[1,2,3,4],['a','b','c']]print (list)for city in ...

dic = {}print(type(dic))dic["a"] = 1dic["b"] = 2print(dic)dic = {"a":1,"b":2}print(dic)

weather_data = [] f = open("F:\weather.csv","r")data = f.read()rows = data.split('\n')print(rows) #切分1for row in rows: split_row = row.split(",") weather_data.append(split_row)print(weath...

anaconda prompt：>> conda list (查看已经装好的库)>>conda install 库名（安装库）>>conda update 库名（更新库）jupyter  notebook:注释：Ctrl+/运行：Ctrl+Enter或Shift+Enter...

SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \uXimport pandas as pdunrate = pd.read_csv("F:\unrate.csv")解决方法：文件名中的\u开始的字符被编译器认为是八进制import pandas as...

ImportError: No module named 'sklearn.model_selection'原因： sklearn库版本太低，升级为高版本方法1：cmd输入：conda update scikit-learn:方法2：方法1：update的速度超级慢进行如下操作：cmd输入1：conda config --add channels https://mirrors.tuna.ts...