六种语言实现输出乘法口诀表

• Objective-c

#import <Foundation/Foundation.h>
int main(int argc,const char * argv[]) {
    @autoreleasepool {
        for (int a=1; a<=9; a++) {
            for (int b=1; b<=a; b++) {
                printf("%dx%d = %d\t",b,a,a*b);
            }
            printf("\n");
        }
    }
    return   1;
}

• C语言

#include <stdio.h>
int main(void){
    int a,b;
    for (a=1; a<=9; a++) {
        for (b=1; b<=a; b++) {
            printf("%dx%d = %d\t",a*b);
        }
        printf("\n");
    }
return 0;
}

• java

package hello;

public class main {
    public static void main(String args[]){
         for (int a=1; a<=9; a++) {
                for (int b=1; b<=a; b++) {
                    System.out.printf("%d x %d = %d\t",a*b);
                }
                System.out.printf("\n");
            }
    }
}

• JavaScript

for (var a = 1; a <10 ;a++){
    for (var b =1;b< a+1;b++){
        document.write(b+"×"+a+"="+(b*a)+"&nbsp;")
    }
    document.write("<br>")
 }

• Swift

import Cocoa
for a in 1...9{
    for b in 1...a{
        print("\(b)x\(a) = \(b*a)",terminator:"\t")
    }
    print("")
}

• Python

for a in range(1,10):
    for b in range(1,a+1):
        print(b,"x",a,"=",a*b,end="\t")
    print("")

可以看出 不同语言又不同的写法，从上到下，代码越来越少，越来越简洁，也能够看出这些语言的各自的一些特点。