import pandas as pd s1 = pd. Series (["学习", "运动", "睡觉", "吃饭"], index = ["01", "02", "03", "04"]) sl ["03"] = "休息" bm = s1. index sub = s1. values time = [40,90,79,30] num = [13,2,10,3] col = ["活动", "时长", "次数"] ...
import pandas as pd s=pd.Series(range(70,100,10)) for i in s: print(i) 该程序运行后输出的结果为( ) A. B. C. D. 相关知识点: 试题来源: 解析 A 【详解】 本题主要考查Python程序的执行。range(start, stop, [step]),start: 计数从 start 开始。默认是从 0 开始。例如range(5)等价于...
137、pd.merge(df1,df2)#默认自动寻找两个表中的公共列进行拼接 138、pd.merge(df1,df2,on=“学号“)#on来指定连接列,连接列要是公共列 139、pd.merge(df1,df2,on=[‘学号’,’姓名’]#on来指定连接列,连接列要是公共列 140、pd.merge(df1,df2,left_on=‘学号’right_on=’编号’) #由公共列,但...
【试题参考答案】有如下 Python 程序段: import pandas as pd s=pd.Series(range(70,100,10)) for i in s: print(i) 该程序运行后输出的结果为( ) ,组卷题库站
import 库名 as 别名 as[æz]：作为。1-1 【代码示例】import pandas as pd import关键字。pandas...
9.某Python程序如下:import pandas as pd Cimport matplotlib. pyplot as plt bdata=[9,5,3] a-index=["a","b","c"]02df=pd.Series(data=data,index=index)46 8plt.show()程序运行后,显示的图像如图所示,划线处应填入的代码为() A.plt.barh(index,data) B.plt.barh(data,index) C.plt.bar(...
有如下Python程序段:import pandas as pddf=pd.DataFrame(\(“语文“:[105,88,95],“数学“:[110,129,135],“英语“:[105,100,110]\))df.at[2,“英语“]=88df1=df.drop(1,axis=0)print(df1)该程序执行后,输出的结果是( )A.语文数学英语...
有如下Python程序段: import pandas as pd s1 = pd. Series (["学习", "运动", "睡觉", "吃饭"], index = ["01", "02", "03", "04"]) sl ["03"] = "休息" bm = s1. index sub = s1. values time = [40,90,79,30]
有Python程序段如下: import pandas as pd s=pd.Series(["205","李光明","男","17"],index=["班级","姓名","性别","年龄"]) s[0]= "201" print(s) 该程序段运行后输出结果是() A.班级 姓名 性别 年龄B.201 "李光明""男" 17 C.班级201 ...
import pandas as pd Python安装pandas模块 在学习python过程中需要用到一个叫pandas的模块,在pycharm中安装时总是出错。 千般百度折腾还是无果,后来发现它需要安装很多依赖包。就问你气不气~ 需要手动安装啊,千万记住,这里有个python模块包的网址:点击进入python模块包网站谢天谢地啊= =...