在函数中查找数组长度
artemparsizeof(int)).
#include <stdio.h>void temp(int ar[]) // this could also be declared as `int *ar`{
printf("%d\n", (int) sizeof(ar)/sizeof(int));}int main(void){
int ar[]={1,2,3};
printf("%d\n", (int) sizeof(ar)/sizeof(int));
temp(ar);
return 0;}MMMHUHU
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