会说整数之后,牛牛开始尝试浮点数(小数)
输入一个浮点数,输出这个浮点数。
package view;
import java.util.Scanner;
public class Loing {
public static void main(String[] args) {
float a = 1.359578f;
String formatted = String.format("%.3f",a);
System.out.println(formatted);
}
}
#include <stdio.h> int main() { float f; scanf("%f", &f); printf("%.3f\n", f); return 0; }C++:
#include <iomanip> #include <iostream> using namespace std; int main() { float f; cin >> f; cout << setiosflags(ios_base::fixed) << setprecision(3) << f << endl; return 0; }Java:
import java.util.Scanner; public class Main { public static void main(String[] args) { System.out.printf("%.3f\n", new Scanner(System.in).nextFloat()); } }Go:
package main import ( "fmt" ) func main() { var f float32 fmt.Scan(&f) fmt.Printf("%.3f\n", f) }Python:
print(format(float(input()), ".3f"))
#include<stdio.h> int main() { int a = 0; scanf_s("%d", &a); printf("%d\n", a); return 0; }
#include <stdio.h> int main() { float a = 0; scanf("%f",&a); printf("%.3f\n",a); return 0; }