Usage of goto statement in c language

Usage of goto statement in c language

The goto statement can make the program jump to the specified location without any conditions, so goto Statement is also called an unconditional jump statement.

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Its syntax is as follows

goto label;
//其它代码
label:

Among them, label is a label defined by ourselves, and the defined rules are the same as The variable has the same name, and its position is not fixed. It can be written after the goto statement or in front of it. However, the goto statement can only jump within a function, and it does not allow jumping out of a function. outside the function.

int day = 1;
loop:
if (day <= 31){
    printf("%d\n", day);
    day++;
    goto loop;
}

The above program uses goto and if statements to implement the loop function. It is the same as the loop function implemented by while, where loop is a label defined by us.

Note: Avoid using goto statements, which will disrupt the program structure and make it difficult to read.

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