int[] cs = {1,4,3,8,10,2,9};
//冒泡
for(int i = 0;i<cs.length -1;i++) {
for(int j=0;j<cs.length-1-i;j++) {
if(cs[j]>cs[j+1]) {
int tep = cs[j];
cs[j]=cs[j+1];
cs[j+1]=tep;
}
}
}
System.out.println(Arrays.toString(cs));