在开始引号和结束引号之间的所有东西都属于一个单独的字符串的一部分,包括回车、前导空格、和其他引号字符。另外,如果字符串中即包含单引号,又包含多引号时也可以用三重引号(three double-quotes) 但是你会发现大部分时候它们在定义docstring(文档注释)的时候使用。 例如: defapproximate_size(size, a_kilobyte_is_1...
With the three double-quotes. We'll be able to type as much as we like. Even 4 lines if we want, or 5, or 6."""print(a) 通常会用在定义SQL语句的表达式中没有变量的时候,例如: importpymysqltry:#建立连接db = pymysql.connect(host='localhost', user='root', passwd='root', db='sc...
15. 一次写入多行 print("I am writing your three lines...") txt.writelines([line1, "\n", line2, "\n", line3, "\n"]) # 方法一,用List代替多行 txt.write(f"{line1}, '\n', {line2}, '\n', {line3}, '\n'") # 方法二,format the lines 16. exists() from os.path impo...
You can assign a multiline string to a variable by using three quotes: Example You can use three double quotes: a ="""Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.""" ...
With the three double-quotes. We'll be able to type as much as we like. Even 4 lines if we want, or 5, or 6. """) Here are the days: Mon Tue Wed Thu Fri Sat Sun Here are the months: Jan Feb Mar Apr May Jun Jul Aug There's something going on here. With the three ...
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: ", days print "Here are the months: ", months print """ There's something going on here. With the three double-quotes. We'll be ...
在这个示例中,字符串x、y 和z 被解包成为变量one、two 和three 的值。这个功能可以用来在变量之间交换变量值。在示例的最后一部分,var2 的值被赋给var1,var1 的值被赋给var2。Python 会同时对元组的各个部分求值。这样,red robin 变成了robin red。 1. 2. 3. 4. 5. 6....
You can create triple-quoted string literals, which can be delimited using either three single quotes or three double quotes. Triple-quoted strings are commonly used to build multiline string literals. However, you can also use them to create single-line literals:Python >>> """A triple-...
hello = """ This string is bounded by triple double quotes (3 times "). Unescaped newlines in the string are retained, though it is still possible/nto use all normal escape sequences. Whitespace at the beginning of a line is significant. If you need to include three opening quotes you ...
\\ 反斜杠\ \' 单引号' \" 双引号" \n 换行符 ('\" Life is short , let\'s learn Python . \"') 原始字符串 print(r"D:\three\two\one\python") 字符末尾加\,表示字符还没完,字符串换行书写时用 Triple quotes :长字符串,三引号字符串,可以换行书写 ...