常用输入输出
1.C语言
scanf, printf; getc, putc; getchar, putchar; gets, puts;fgets, fputs;fgetc, fputc; fscanf, fprintf
具体用法查c库函数。
2.C++
cin,cout
cin后面还可以跟格式,比如:cin>>hex>>变量
3.JAVA
Scanner sc = new Scanner(System.in); int i = sc.nextInt(); Scanner Std = new Scanner(); //Standard input stream private static BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in)); //Standard output stream private static PrintWriter stdOut = new PrintWriter(System.out, true); // Standard error stream private static PrintWriter stdErr = new PrintWriter(System.err, true); private static BufferdReader stdIn = new BufferdReader ( new InputStreamReader(Syatem.in));
提醒:当输入没有明显的结束标志的时候可以用
C:while(scanf("%d",&a) != EOF){}
C++:while(cin>>a){}
JAVA:判断输入的是否为整型或者字符串等