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This article will explain in detail how to wrap long strings in C language. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

1. Long string example / * * @ file test.c * @ author Ailson Jack (jackailson@foxmail.com) * blog: www.only2fire.com * @ brief * @ version 1.0 * @ date 2021-09-25 * * @ copyright Copyright (c) 2021 * / # include int main (void) {char name [] = "Ailson Jack"; int age = 18 Printf ("Hello, My name is% s.\ r\ nI am% d years old this year.\ r\ nNice to meet you.\ r\ nCan I make friends with you?\ r\ nI like programming in C very much.\ r\ n", name, age); while (1); return 0;}

The string content that the above code needs to print is relatively long, in the code reading software, you may need to drag the horizontal scroll bar to see the complete content of the string clearly, which greatly affects the reading efficiency of the code. The following figure shows the running result of the above code:

Here are two ways to change the single-line writing of a long string into multiple lines.

two。 Line wrapping method for writing long strings: using double quotation marks to wrap long strings

When writing line breaks to a long string, you can use double quotes to split the long string into multiple substrings. The compiler will automatically concatenate these substrings during the compilation process, which will not affect the final desired display effect. The sample code is as follows:

/ * @ file test.c * @ author Ailson Jack (jackailson@foxmail.com) * blog: www.only2fire.com * @ brief * @ version 2021-09-25 * * @ copyright Copyright (c) 2021 * * / # include int main (void) {char name [] = "Ailson Jack"; int age = 18 Printf ("Hello, My name is% s.\ r\ nI am% d years old this year.\ r\ n"Nice to meet you.\ r\ nCan I make friends with you?\ r\ n"I like programming in C very much.\ r\ n", name, age); while (1); return 0;}

The running result of the above example is as follows:

The result of the run is the same as when a long string is not split.

Method 2: wrap a long string with a backslash

You can split a long string with a backslash, and the newline character after the backslash will be ignored by C, so you can split the string, but the space on the next line will be counted. This is a problem with the backslash splitting the string. The example code is as follows:

/ * @ file test.c * @ author Ailson Jack (jackailson@foxmail.com) * blog: www.only2fire.com * @ brief * @ version 2021-09-25 * * @ copyright Copyright (c) 2021 * * / # include int main (void) {char name [] = "Ailson Jack"; int age = 18 Printf ("Hello, My name is% s.\ r\ nI am% d years old this year.\ r\ n\ Nice to meet you.\ r\ nCan I make friends with you?\ r\ n\ I like programming in C very much.\ r\ n", name, age); while (1); return 0;}

The running result of the above code is shown in the following figure:

There is a difference between the run result and the final desired result, inserting some unwanted spaces, because the string split by the backslash counts the spaces on the next line.

This is the end of the article on "how to wrap long strings in C language". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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