isdecimal:str,unicode num0='4'num1=b'4'#bytesnum2=u'4'#unicode,python3中无需加u就是unicodenum3='四'#中文数字num4='Ⅳ'#罗马数字print(num0.isdecimal())#print(num1.)print(num2.isdecimal())print(num3.isdecimal())print(num4.isdecimal()) isnumeric:str,unicode,中文,罗马 num0='4...
>>>print('{} is a {}'.format('dog','animal'))# {}为占位符,分别对应后面实际的值dog is a animal>>>print('{1} have a {0} time {2}'.format('good','mary','today'))# 在{}中添加序号,序号为n则对应后面第n个值(n从0开始)mary have a good time today>>>print('{name} have ...
print(num4.isdecimal()) isnumeric:str,unicode,中文,罗马 num0='4' num1=b'4' #bytes num2=u'4' #unicode,python3中无需加u就是unicode num3='四' #中文数字 num4='Ⅳ' #罗马数字 print(num0.isnumeric()) # print(num1) print(num2.isnumeric()) print(num3.isnumeric()) print(num4....
string.lstrip() #removes whitespace from left string.rstrip() #removes whitespace from right string.split() #splitting words string.split(',') #split words by comma string.count('l') #count how many times l is in the string string.find('Wo') #find the word Wo in the string string....
Python # data-repos/data_repos/read.pyfromimportlibimportresourcesimportpandasaspddefdata(name):"""Get a data file."""data_path=path(name)file_type=data_path.suffix.lstrip(".")returnreaders[file_type](data_path)defpath(name):"""Find the path to a data file."""forresourceinresources.file...
http://docs.python.org/3/library/turtle.html >>> http://news.gzcc.cn/html/xiaoyuanxinwen/4.html 产生校园新闻的一系列新闻页网址 for i in range(2,231): "http://news.gzcc.cn/html/xiaoyuanxinwen/{}.html".format(i) 练习字符串内建函数:strip,lstrip,rstrip,split,count ...