使用C ++逐行读取文件
这是一个C++程序，用于逐行读取文件。
输入值
tpoint.txt is having initial content as “nhooo.com.”
输出结果
nhooo.com.
算法
Begin
Create an object newfile against the class fstream.
Call open() method to open a file “tpoint.txt” to perform write operation using object newfile.
If file is open then
Input a string “nhooo.com" in the tpoint.txt file.
Close the file object newfile using close() method.
Call open() method to open a file “tpoint.txt” to perform read operation using object newfile.
If file is open then
Declare a string “tp”.
Read all data of file object newfile using getline() method and put it into the string tp.
Print the data of string tp.
Close the file object newfile using close() method.
End.示例
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main(){
fstream newfile;
newfile.open("tpoint.txt",ios::out); // open a file to perform write operation using file object
if(newfile.is_open()) //checking whether the file is open
{
newfile<<"nhooo.com \n"; //inserting text
newfile.close(); //close the file object
}
newfile.open("tpoint.txt",ios::in); //open a file to perform read operation using file object
if (newfile.is_open()){ //checking whether the file is open
string tp;
while(getline(newfile, tp)){ //read data from file object and put it into string.
cout << tp << "\n"; //print the data of the string
}
newfile.close(); //close the file object.
}
}输出结果
nhooo.com.
热门推荐
10 财运虎年祝福语简短语
11 单亲爸爸春节祝福语简短
12 狗狗上厕所训练
13 植物种植祝福语简短
14 翻译考试祝福语朋友简短
15 个人周年庆简短祝福语
16 狗狗怎么训练
17 分别祝福语简短搞笑英文
18 生日广州男生祝福语简短