Linux下如何查看test.txt个文件的内容()
A.Is test.txt
B.cat test.txt
C.more test.txt
D.less test.txt
A.Is test.txt
B.cat test.txt
C.more test.txt
D.less test.txt
A.Atop比Linux系统自带top指令更强大
B.Atop也可以在windows系统下使用
C.atop可以查看Linux系统的性能状况,包括进程活动、CPU、内存、硬盘、网络等
D.CentOS操作系统,默认不提供Atop工具
下列语句不能够用于打开C根目录下文件test.txt的语句是
A.ifstream fin;fin.open("C:\\test.txt");
B.ifstream fin("C:\\test.txt");
C.A)和B)
D.ifstream fin;fin("C:\\test.txt");
A.D:\\Python\\Test.txt
B.D:/Python/Test.txt
C.D:\Python\Test.txt
D.D://Python//Test.txt
对于下面的程序 ifstream fin(c:\test.txt); if(fin) cout<<"ok"; else cout<<"wrong"; 对于if语句中的内容可以换为
A.fin.fail():
B.fin.bad();
C.fin.good();
D.fin.eof();
import java.io.*;
public class Test {
public static void main(String args[]) {
try {
String s = "ABCDE" byte b[]=s.getBytes()
FileOutputStream file =
new FileOutputStream("test.txt", true)
file.write(b) file.close() }
catch(IOException e) {
System.out.println(e.toString()) }
}
}
A、ABCABC
B、ABCDE
C、Test
D、ABCDEABCDEABCDE
下面的程序执行后,文件test.txt中的内容是______。 #include<stdio.h> void fun(char *fname,char *st) { FILE*myf;int i; myf=fopen("test.txt","w"); for(i=0;i<strlen(st);i++) fputc(st[i],myf); fclose(myf); } main() { fun("test","new one"); fun("test","hello,"); }
A.hello,
B.new onehello,
C.new one
D.hello,ne
下面的程序执行后,文件test.txt中的内容是 () # include<stdio.h> void fun(char*<fname,char * st) { FILE*myf;int i; myf=fopen(fname,"w"); for(i=0;i<strlen(st);i+ +) fputc(st[i],myf); fclose (myf); } main() { fun("test","new word"); fun("test","hello"); }
A.hello
B.new worldhello,
C.new world
D.hello,rld
A.df-k/history_logs|wc
B.find/history_logs|wc-n
C.cat/history_logs|ls-l|wc-l
D.find/history_logs-typef|wc-l