1 //11-3
2 #include <iostream>
3 #include <fstream>
4 using namespace std;
5 void test01()
6 {
7 ofstream ofs;
8 ofs.open("test1.txt",ios::out);
9 ofs<<"已成功写入文件";
10 ofs.close();
11 }
12 int main()
13 {
14 test01();
15 return 0;
16 }
1 //11-5
2 #include <iostream>
3 #include <fstream>
4 #include <string>
5 using namespace std;
6 void test01()
7 {
8 ofstream ofs;
9 ofs.open("test1.txt",ios::out);
10 ofs<<"已成功写入文件";
11 ofs.close();
12 }
13 void test03()
14 {
15 ///////////////////////////////
16 ofstream ofs;
17 ofs.open("test1.txt",ios::app);
18 ofs<<"已成功添加字符";
19 ofs.close();
20 ///////////////////////////////
21 ifstream ifs;
22 ifs.open("test1.txt",ios::in);
23 string buf;
24 while(getline(ifs,buf))
25 {
26 cout<<buf<<endl;
27 }
28 ifs.close();
29 }
30 int main()
31 {
32 //test01();
33 test03();
34 return 0;
35 }