multiline_string = '''This is a string where I can confortably write on multiple lines without worring about to use the escape character "\\" as in the previsou example. As you'll see, the original string formatting is preserved. ''' print(multiline_string) 改变大小写 你可以很方便的...
read_csv( 'large.csv', chunksize=chunksize, dtype=dtype_map ) # # 然后每个chunk进行一些压缩内存的操作,比如全都转成sparse类型 # string类型比如,学历,可以转化成sparse的category变量,可以省很多内存 sdf = pd.concat( chunk.to_sparse(fill_value=0.0) for chunk in chunks ) #很稀疏有可能可以装的下...
Currently our string ispretty long. usage="Welcome to stopwatch!\nThis script counts slowly upward,\none second per tick.\n\nNo command-line arguments are accepted." It'd be nice to break it up over multiple lines. We could make this code a little bit more readable by breaking this str...
string5 = '''This is a multi-line string.It covers multiple lines.'''与其他字符串定义方式不同，三引号可以用于定义跨越多行的字符串，无需使用换行符或反斜杠转义特殊字符。如果需要在Python中使用无限数量的三引号，可以在所有的三引号前添加"r"字符，例如：string6 = r'''This is an "endless" mult...
python的string模块 1.字符串属性方法操作: 1.>字符串格式输出对齐 1 2 3 4 5 6 7 8 9 10 11 >>> str = "Python stRING" >>> print str.center(20) #生成20个字符长度,str排中间 Python stRING >>> print str.ljust(20) #生成20个字符长度,str左对齐 Python stRING >>> print str.rjust...
multiline string that also works as a multiline comment. """ 如果您的注释跨越多行,最好使用单个多行注释,而不是几个连续的单行注释,这样更难阅读,如下所示: """This is a good way to write a comment that spans multiple lines. """# This is not a good way# to write a comment# that sp...
Sometimes we try to print our string to multiple lines also and in that case what happens is that, let’s see this with an example: 有时我们也尝试将字符串打印到多行,在这种情况下会发生什么,让我们看一个例子: def multiLine(): return "This is a new line ...
multiline string that also works as a multiline comment. """ 1. 2. 3. 4. 5. 如果您的注释跨越多行,最好使用单个多行注释,而不是几个连续的单行注释,这样更难阅读,如下所示: """This is a good way to write a comment that spans multiple lines. """ ...
12) string.whitespace 所有的空白符包含 \t 制表符 \n 换行符 (linefeed) \x0b \x0C \r 不要改变这个定义──因为所影响它的方法strip()和split()为被定义 A string containing all characters that are considered whitespace. On most systems this includes the characters space, tab, linefeed, retur...
F-strings can span multiple lines, making it easy to format longer messages or blocks of text. You can use triple quotes to create a multiline f-string and embed variables or expressions on any line. main.py #!/usr/bin/python name = 'John Doe' ...