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public class test_23 {
public static void main(String[] args) {
//打印输出菱形的上半部分
for (int i = 0; i <5; i++) {
for (int j =5; j>i+1; j--) {//打印左上角的空白部分
System.out.print(" ");
}
for (int j = 0; j<2*i+1; j++) {//打印*
System.out.print("*");
}
System.out.println();
}
//打印输出菱形的下半部分
for (int i =0; i<4; i++) {
for (int j = 0; j<i+1; j++) {//打印空白部分
System.out.print(" ");
}
for (int j =0; j<2*(4-i)-1; j++) {//打印*
System.out.print("*");
}
System.out.println();
}
}
}
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