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Most people do not understand the knowledge points of this article "how to define local variables in c language", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article, let's take a look at this "how to define local variables in c language" article.

1. The variable defined inside the function is called local variable, and its scope is limited to the interior of the function. It is invalid after leaving the function, and an error is reported after use.

2. Local variables can only be used within the function. They are not valid after leaving the function. If you use them again, you will report an error.

Example

# include int F1 (int a) {int bscorec; / / return bscorec is valid only in function F1 ();} int main () {int m = 5; int n = 6; / / mpennvalid printf is only valid in function main () ("m =% d n =% d\ n", mdjinn); printf ("b =% d c =% d\ n", bMagee c) / / bint main c does not declare return 0 in the function;} / * output: main.cpp: In function 'int main ()': main.cpp:11:29: error:'b' was not declared in this scope 11 | printf ("b =% d c =% d\ n", bMagnec) | | ^ main.cpp:11:31: error:'c 'was not declared in this scope 11 | printf ("b =% d c =% d\ n", bmeme c) | | ^ * / above is about the article "how to define local variables in c language". I believe you all have some understanding. I hope the content shared by the editor will be helpful to you. If you want to know more about it, please follow the industry information channel.

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