一个程序媛的成长记录❤

实不相瞒，为了在cmd或者PowerShell上跑出如下效果，我前后弄了差不多一个小时。（唉，还真是笨办法学啊）一直在纠结环境变量配置的问题，按照查的资料上配置了，但在cmd或PowerShell上一输入python，就报错，接着显示“python停止工作”。一度非常崩溃。后来决定归零重来，于是又重新安装。安装中无意发现，原来可以在安装时就选择自动配置环境变量。于是，我就决定再试最后一把，要是还不...

from sys import argv#使用 argv 来获取文件名script,filename =argvtxt=open(filename)print "here is your file %r:"%filenameprint txt.read()print "type the filename again:"file_again =raw_input(">")...

from sys import argvscript, filename = argvprint "We're going to erase %r." % filenameprint "If you don't want that, hit CTRL-C (^C)."print "If you do want that, hit RETURN."raw_input("?")pr...

def add(a, b): print "ADDING %d + %d" % (a, b) return a + bdef subtract(a, b): print "SUBTRACTING %d - %d" % (a, b) return a - bdef multiply(a, b): print "MULTIPLYING %d * %d" ...

print "Let's practice everything."print 'You\'d need to know \'bout escape with \\ that do \n newline and \t tabs.'poem="""\tThe lovely worldwith logic so firmly plantedcannot discern \n the ne...

from sys import argvfrom os.path import exists #我们 import 了又一个很好用的命令 exists。这个命令将文件名字符串作为参数，如果文件存在的话，它将返回 True，否则将返回 False。script, from_file, to_file = argvprint "Copying from %s to %s" % (from_...

错误代码：（编译时一直报错）IndentationError:expected an indented block：说明此处需要缩进# this one is like your scripts with argvdef print_two(*args):arg1, arg2 = argsprint "arg1: %r, arg2: %r" % (arg1, arg2)# ok, tha...

def cheese_and_crackers(chess_count,boxes_of_crackers): print "you have %d cheeses" %cheese_count print "you have %d boxes of crackers!" %boxes_of_crackers print "Man that's enough for a party!"...

from sys import argvscript, input_file = argvdef print_all(f):print f.read()#readline() 方法用于从文件读取整行，包括 "\n" 字符。如果指定了一个非负数的参数，则返回指定大小的字节数，包括 "\n" 字符。def rewind(f):f.seek(0)def print_a_line(li...

一直很想尝试一下电脑跑脚本，抢票就是一个很好的例子。于是在网上找呀找，终于找到了一个可以运行的12306抢票脚本。虽然因为12306的图片验证而有些阻碍。但我觉得代码跑起来的整体体验非常好。感谢一位博主提供的代码：https://www.cnblogs.com/lizm166/p/8191305.html1.Chromedriver 驱动的下载地址如下： http://chromedriv...

1.SyntaxError: Non-UTF-8 code starting with '\xb7' in file 解决方式：在程序最上面加上：  # coding=gbk 2.此外还遇到了问题，python2和python3 中print用法不同。因为我用的是python3，所以print（），其后的括号一定不能忘。 3.SyntaxError: (unicode ...

1.怎么打开及退出python环境？2.怎么查看pip的安装情况？（是 Python 包管理工具，该工具提供了对Python 包的查找、下载、安装、卸载的功能。目前如果你在 python.org 下载最新版本的安装包，则是已经自带了该工具。Python 2.7.9 + 或 Python 3.4+ 以上版本都自带 pip 工具。）两种命令行语句都可以： 3...

最初遇到这个问题的时候，是因为我没有安装scrapy由于scrapy爬虫框架依赖许多第三方库，所以在安装scrapy之前，需确保以下第三方库均已安装:1.lxml库   可通过命令行查看是否安装 pip3   list2.通过 pip安装 zope.interface库pip3 install zope.interface3.twisted库twisted库不能...

from sys import argvscript, user_name = argvprompt = '> ' #将用户提示符设置为变量 prompt，print "Hi %s, I'm the %s script." % (user_name, script)print "I'd like to ask you a few questions."print "Do you...

代码：from sys import argvscript, first, second, third = argvprint "The script is called:", scriptprint "Your first variable is:", firstprint "Your second variable is:", secondprint "Your third va...

首先在notepad++里写如下语句，并保存为   .py格式然后在powershell里运行刚才保存的程序。可以发现，我因为语句不熟悉，中间还报错了一次。运行前要先加 python,然后才是.py文件。如此，第一个任务便完成了。在书里，作者提到，有可能需要在第一行加# -- coding: utf-8 才可以正确编译，而我没有加也可以行得通。感觉这应该是Notepad++的功劳。...

源码：运行情况：从上述运行情况的报错可以看出，文件运行时，路径的正确性太重要了。

+ plus- minus/ slash * asterisk% percent< less-than > greater-than<= less-than-equal>= greater-than-equal （顺带学点英语~hhh）print "I will now count my chickens:"print "Hens",25+30/6print "Roo...

在这个简单任务中，我却频频报错，原因何在？“unexpected indent”经改正后发现python的空格、缩进啥的，格式要求是很严格的！把那些多余的空格去掉之后，运行就正常啦！...

my_name = 'Zed A. Shaw'my_age = 35 # not a liemy_height = 74 # inchesmy_weight = 180 # lbsmy_eyes = 'Blue'my_teeth = 'White'my_hair = 'Brown'print "Let's talk about %s." % my_nameprint "He's ...

x = "There are %d types of people." % 10binary = "binary"do_not = "don't"y = "Those who know %s and those who %s." % (binary, do_not)print xprint yprint "I said: %r." % xprint "I also said: '.

print "Mary had a little lamb."print "Its fleece was white as %s."%'snow'print "And everywhere that Mary went."print "."*10 # what'd that do?end1="C"end2="h"end3="e"end4 = "

formatter = "%r %r %r %r"print formatter % (1, 2, 3, 4)print formatter % ("one", "two", "three", "four")print formatter % (True, False, False, True)print formatter % (formatter, formatter, formatt...

# Here's some new strange stuff, remember type it exactly.days = "Mon Tue Wed Thu Fri Sat Sun"months = "Jan\nFeb\nMar\nApr\nMay\nJun\nJul\nAug"print "Here are the days: ", daysprint "Here are the ...

原文：在习题 9 中我你接触了一些新东西。我让你看到两种让字符串扩展到多行的方法。第一种方法是在月份之间用 \n (back-slash n ) 隔开。这两个字符的作用是在该位置上放入一个“新行 (new line)”字符。使用反斜杠 \ (back-slash) 可以将难打印出来的字符放到字符串。针对不同的符号有很多这样的所谓“转义序列 (escape sequences)”，但有一个特殊的转义...

print "How old are you?",age = raw_input()print "How tall are you?",height = raw_input()print "How much do you weigh?",weight = raw_input()print "So, you're %r old, %r tall and %r heavy." % (age, heig...

age = raw_input("How old are you? ")height = raw_input("How tall are you? ")weight = raw_input("How much do you weigh? ")print "So, you're %r old, %r tall and %r heavy." % (age, height, weight)其实目...

以前记得，好久不用，又……又忘了在哪里配置了。(*/ω＼*)File →Settings→ project interpreter→+