28 lines
419 B
C
28 lines
419 B
C
#include <stdio.h>
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int main(){
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int a = 1;
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int* p;//p指针变量 可以用来存储整型变量的地址
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double d = .3;
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//数据类型 变量名;
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//数据类型* 变量名;
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//&取地址符
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printf("&a=%d\n", &a);
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printf("&d=%d\n", &d);
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//1.使用指针变量存起来
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p = &a;
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printf("p=%d\n", p);
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//间接访问符 *
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//*p <=> a
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*p = 10;
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printf("*p=%d\n", *p);
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printf("a=%d\n", a);
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void* jk;
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jk = &a;
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printf("%d\n", *(int *)jk);
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return 0;
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}
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