//while-if嵌套
/*char n='*';
int m=1;
System.out.println("==输出10行10列的星号==");
while(m<101){
System.out.print(n+" ");
if(m%10==0){
System.out.println();
}
m++;
*/
//while-while嵌套循环
int m=1;
int n=1;
while(m<=10){
while(n<10){
System.out.print("* ");
n++;
}
n=1;
System.out.println("* ");
m++;