用JAVA打出奇数行菱形
如图:
如图:
答案:public static void display(int num){
if(num == 0)
return;
for(int row=0;row<num;row++){
for(int col=1;col<num-row;col++){
System.out.print(" ");
}
if(row %2 == 0){
for(int col=0;col<row*2+1;col++){
System.out.print("*");
}
}else{
for(int col=0;col<row*2+1;col++){
System.out.print("$");
}
}
System.out.println();
}
for(int row=num;row>0;row--){
for(int col=0;col<=num-row;col++){
System.out.print(" ");
}
if(row % 2 == 0){
for(int col=2;col<row*2-1;col++){
System.out.print("$");
}
}else{
for(int col=2;col<row*2-1;col++){
System.out.print("*");
}
}
System.out.println();
}
}import java.util.Scanner;
public class Rhombus {
public static void drawRhombus(int count) {
int sum = 1;
int num = 1;
int i, j;
// 正三角
for (i = 1; i <= count; i++) {
for (j = 0; j < (count+2) - i; j++) {
System.out.print(" ");
}
while (num <= sum) {if (i % 2 == 1) {
System.out.print("*");
} else {
System.out.print("@");
}
num++;
}
sum += 2;
num = 1;
System.out.println();
}
// 倒三角
for (i = 1; i <= count+1; i++) {
for (j = 0; j < i ; j++) {
System.out.print(" ");
}
while (num <= sum) {if (i % 2 == 1) {
System.out.print("@");
} else {
System.out.print("*");
}
num++;
}
sum -= 2;
num = 1;
System.out.println();
}
}public static void main(String[] args) {
import java.util.*;
System.out.println("请输入打印的行数:");
int rows = new Scanner(System.in).nextInt();
drawRhombus(rows);
}
}
public class diamond
{
public static void main(String[] args)
{
System.out.println("请输入打印的行数:");
int rows = new Scanner(System.in).nextInt();
printDiamond(rows);
}
public static void printDiamond(int rows)
{
int i,j,k;
//打印出前rows行
for( i = 0;i < rows;i++)
{
for( j = 0;j <= rows - i -1;j++)
System.out.print(" ");
for( k = 0; k <= 2*i;k++)
{
if( (i % 2) == 0)
System.out.print("*");
else
System.out.print("@");
}
System.out.println();
}
//打印出后(rows -1)行
for(i = 0;i < (rows -1);i++)
{
for( j = 0;j <= i+1;j++)
System.out.print(" ");
for(k = 0;k < (2*rows - 3 ) - 2*i;k++)
{
if(i % 2 ==0)
System.out.print("@");
else
System.out.print("*");
}
System.out.println();
}
}
}使用‘嵌套循环’做,代码你自己考虑,直接告诉你没有意义。
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