在多行中串联python中的字符串 [英] Concatenate strings in python in multiline

问题描述

我有一些字符串要连接，结果字符串会很长.我还有一些变量需要串联.

I have some strings to be concatenate and the resultant string will be quite long. I also have some variables to be concatenated.

如何组合字符串和变量，这样结果将是多行字符串?

How can I combine both strings and variables so the result would be a multi line string?

以下代码引发错误.

str = "This is a line" +
       str1 +
       "This is line 2" +
       str2 +
       "This is line 3" ;

我也尝试过

str = "This is a line" \
      str1 \
      "This is line 2" \
      str2 \
      "This is line 3" ;

请提出一种方法.

推荐答案

有几种方法.一个简单的解决方案是添加括号:

There are several ways. A simple solution is to add parenthesis:

strz = ("This is a line" +
       str1 +
       "This is line 2" +
       str2 +
       "This is line 3")

如果要将每个行"放在单独的行上，则可以添加换行符:

If you want each "line" on a separate line you can add newline characters:

strz = ("This is a line\n" +
       str1 + "\n" +
       "This is line 2\n" +
       str2 + "\n" +
       "This is line 3\n")

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