CopyFile("C://ss//1.tar.gz","C://ss//ss//2.tar.gz",FALSE);可以复制文件吗
时间: 2023-08-03 16:04:14 浏览: 40
是的,CopyFile函数可以复制文件。这段代码的作用是将C盘下ss文件夹中的1.tar.gz文件复制到ss文件夹中并改名为2.tar.gz。其中第三个参数FALSE表示如果目标文件已经存在则不覆盖。如果想要覆盖目标文件可以将该参数设置为TRUE。需要注意的是,如果源文件或目标文件的路径不存在则会抛出错误。
相关问题
将d:/java5/a.txt 拷贝到d:/java5/b.txt,用字符流方式
可以使用Java的字符流来实现拷贝d:/java5/a.txt到d:/java5/b.txt的操作。代码如下:
```java
import java.io.*;
public class CopyFile {
public static void main(String[] args) {
try {
FileReader in = new FileReader("d:/java5/a.txt");
FileWriter out = new FileWriter("d:/java5/b.txt");
int c;
while ((c = in.read()) != -1) {
out.write(c);
}
in.close();
out.close();
} catch (IOException e) {
System.out.println("拷贝文件出错:" + e.getMessage());
}
}
}
```
在上面的代码中,我们使用了FileReader和FileWriter来分别打开a.txt和b.txt文件。然后,我们使用while循环逐个字符地从a.txt中读取数据,并将其写入到b.txt中。最后,我们关闭了输入和输出文件对象。
需要注意的是,这种方式只适用于拷贝文本文件,如果要拷贝二进制文件,应该使用字节流来实现。
CopyFile(CharToLPCTSTR("C:/Users/Admin/Desktop/worldcreate.txt"), CharToLPCTSTR("C:/Users/Admin/Desktop/tagget.txt"), FALSE);
As an AI language model, I cannot execute or run codes. However, I can explain what this code does.
The code is using the function CopyFile to copy a file named "worldcreate.txt" located in "C:/Users/Admin/Desktop/" to a new file named "tagget.txt" also located in "C:/Users/Admin/Desktop/". The last parameter "FALSE" specifies that if the destination file already exists, it will not be overwritten.
CharToLPCTSTR is a function that converts a character array to a long pointer to a constant null-terminated string. In this case, it is used to convert the file paths to the required format for the CopyFile function.