以下程序的执行结果是_______。 include include include void 以下程序的执行结果是_______。include＜iostream.h＞include＜fstream.h＞include＜stdlib.h＞void main(){char ch：fstream file：file．open("abc．dat"，ios：：out1ios：：inlios：：binary)；if(! file){cout＜＜“abc.dat文件不能打开”＜＜endl：abort
以下程序的执行结果是_______。 include include include void
以下程序的执行结果是_______。
include＜iostream.h＞
include＜fstream.h＞
include＜stdlib.h＞
void main()
{
char ch：
fstream file：
file．open("abc．dat"，ios：：out1ios：：inlios：：binary)；
if(! file)
{
cout＜＜“abc.dat文件不能打开”＜＜endl：
abort
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