请教两个C语言的问题[已解决]

发布于 2012-07-12 08:58:10 浏览：7387 订阅该版

9 个回答

haitao52198 2012-07-12

这家伙很懒，什么也没写！

>1、关于指针数组赋值
>
>
>```
>
>static const char const *da850_evm_ui_exp[] = {
>	[DA850_EVM_UI_EXP_SEL_C]        = "sel_c",
>	[DA850_EVM_UI_EXP_SEL_B]        = "sel_b",
>	[DA850_EVM_UI_EXP_SEL_A]        = "sel_a",
>	[DA850_EVM_UI_EXP_PB8]          = "pb8",
>	[DA850_EVM_UI_EXP_PB7]          = "pb7",
>	[DA850_EVM_UI_EXP_PB6]          = "pb6",
>	[DA850_EVM_UI_EXP_PB5]          = "pb5",
>	[DA850_EVM_UI_EXP_PB4]          = "pb4",
>	[DA850_EVM_UI_EXP_PB3]          = "pb3",
>	[DA850_EVM_UI_EXP_PB2]          = "pb2",
>	[DA850_EVM_UI_EXP_PB1]          = "pb1",
>};
>
>```
>
>
>
>2、关于结构体数组赋值
>
>
>```
>static struct gpio_keys_button da850_evm_ui_keys[] = {
>	[0 ... DA850_N_UI_PB - 1] = {
>		.type			= EV_KEY,
>		.active_low		= 1,
>		.wakeup			= 0,
>		.debounce_interval	= DA850_KEYS_DEBOUNCE_MS,
>		.code			= -1, /* assigned at runtime */
>		.gpio			= -1, /* assigned at runtime */
>		.desc			= NULL, /* assigned at runtime */
>	},
>};
>```
>
>
>C语言功底较浅，请明白的人指点一下。

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这里指针数组赋值用了一个大括号套起来，里面分别赋值的手法还是第一次见到，哪里有讲解这部分知识的呢？
第二个是在第一个的基础上又用了一个...的东西，更是没有见过。虽然功能都能猜得到，但毕竟要求证一下，楼下有哪位高人，给个大概的方向好去找呢？感激涕零啊