conflict.c

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#conflict #variables #include #c

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本文通过一个C语言程序示例展示了局部变量如何与同名的全局变量发生冲突，并说明了作用域规则。程序包含两个函数：main() 和 conflict_a()，前者调用后者并分别在调用前后打印变量 a、b 和 c 的值。

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int a = 1, b = 2, c = 3; // Global variables

void conflict_a(void)
{
int a = 100;

printf("a contains %d b contains %d c contains %d/n", a, b, c);
}

void main(void)
{
conflict_a();
printf("a contains %d b contains %d c contains %d/n", a, b, c);
}