>>> "m.survivalescaperooms.com" #字符串使用單引號（'）或雙引號（"）表示'm.survivalescaperooms.com'>>> 'm.survivalescaperooms.com''m.survivalescaperooms.com'>>> "www."+"jb51"+".net" #字符串可以用“+”號連接'm.survivalescaperooms.com'>>> "#"*10 #字符串可以使用“*”來代表重復次數'##########'>>> "What's your name?" #單引號中可以直接使用雙引號，同理雙引號中也可以直接使用單引號"What's your name?">>> path = r"C:/newfile" #此處r開頭表示原始字符串，里面放置的內容都是原樣輸出>>> print(path)C:/newfile

>>> str1 = "python test">>> "test" in str1 #這里in用來判斷元素是否在序列中True>>> len(str1) #這里len()函數求字符串長度11>>> max(str1)'y'>>> min(str1)' '

>>> "I like %s" % "python" #使用%進行格式化輸出的經典表示方式'I like python'>>> dir(str) #列出字符串所有屬性與方法['__add__', '__class__', '__contains__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__getnewargs__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__iter__', '__le__', '__len__', '__lt__', '__mod__', '__mul__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__rmod__', '__rmul__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'capitalize', 'casefold', 'center', 'count', 'encode', 'endswith', 'expandtabs', 'find', 'format', 'format_map', 'index', 'isalnum', 'isalpha', 'isdecimal', 'isdigit', 'isidentifier', 'islower', 'isnumeric', 'isprintable', 'isspace', 'istitle', 'isupper', 'join', 'ljust', 'lower', 'lstrip', 'maketrans', 'partition', 'replace', 'rfind', 'rindex', 'rjust', 'rpartition', 'rsplit', 'rstrip', 'split', 'splitlines', 'startswith', 'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill']

>>> str = "I like {1} and {2}" #這里{1}表示占位符（注意：這里得從{0}開始）>>> str.format("python","PHP")Traceback (most recent call last): File "<pyshell#5>", line 1, in <module>  str.format("python","PHP")IndexError: tuple index out of range>>> str = "I like {0} and {1}">>> str.format("python","PHP")'I like python and PHP'>>> "I like {1} and {0}".format("python","PHP")'I like PHP and python'>>> "I like {0:20} and {1:>20}".format("python","PHP")#{0:20}表示第一個位置占據20個字符，并且左對齊。{1:>20}表示第二個位置占據20個字符，且右對齊'I like python        and         PHP'>>> "I like {0:.2} and {1:^10.2}".format("python","PHP")#{0:.2}表示第一個位置截取2個字符，左對齊。{1:^10.2}表示第二個位置占據10個字符，且截取2個字符，^表示居中'I like py and   PH  '>>> "age: {0:4d} height: {1:6.2f}".format("32","178.55") #這里應該是數字，不能用引號，否則會被當作字符串而報錯！Traceback (most recent call last): File "<pyshell#0>", line 1, in <module>  "age: {0:4d} height: {1:6.2f}".format("32","178.55")ValueError: Unknown format code 'd' for object of type 'str'>>> "age: {0:4d} height: {1:8.2f}".format(32,178.5523154) #這里4d表示長度為4個字符的整數，右對齊。8.2f表示長度為8，保留2位小數的浮點數，右對齊。'age:  32 height:  178.55'

>>> "I like {str1} and {str2}".format(str1 = "python",str2 ="PHP")'I like python and PHP'>>> data = {"str1":"PHP","str2":"Python"}>>> "I like {str1} and {str2}".format(**data)'I like PHP and Python'

>>> # isalpha()判斷字符串是否全部為字母>>> str1 = "I like python" #這里str1里面有空格>>> str1.isalpha()False>>> str2 = "pythonDemo" #這里為全部是字母>>> str2.isalpha()True>>> # split()分割字符串>>> smp = "I like Python">>> smp.split(" ")['I', 'like', 'Python']>>> # strip()去除字符串兩端空格 ，類似的，lstrip去除左側空格，rstrip去除右側空格>>> strDemo = "  python demo  ">>> strDemo.strip() #類似于php中的trim()函數'python demo'>>> "****python**".strip("*") #strip()函數還可刪除指定字符'python'

>>> #字符串拼接（對于+不適用的情況下可以使用）>>> smp = "I like Python">>> c = smp.split(" ")>>> c = "I like python".split()>>> type(c) #這里檢測類型，可以看到c為列表<class 'list'>>>> "*".join(c)'I*like*Python'>>> " ".join(c)'I like Python'>>> " ".join(["I","Like","python"]) #這里可以直接使用列表作為join函數的參數'I Like python'>>> " ".join("abcd") #也可直接使用字符串作為join函數的參數'a b c d'>>> # count()函數統計指定字符串出現次數>>> "like python,learn python".count("python")2>>> # find()函數查找指定字符串出現位置>>> "python Demo".find("python")0>>> "python Demo".find("Demo")7>>> # replace(old,new)函數替換指定字符串(old)為新字符串(new)>>> "I like php".replace("php","python")'I like python'