conflict.c

CCodes

于 2007-11-08 12:48:00 发布

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分类专栏： C 文章标签： conflict variables include c

本文链接：https://blog.youkuaiyun.com/CCodes/article/details/1873254

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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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name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"> #include <stdio.h>

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);
}