有以下程序 #include main() { char a[5][10] = {"one", "two", "three", "four", "five" }; int i, j; char t; for ( i=0; i<2; i++ ) for ( j=i+1; j<5; j++ ) if ( a[i][0] >a [j][0] ) { t=a[i][0]; a[i][0]=a[j][0]; a[j][0]=t; } puts(a[1]); } 程序运行后的输出结果是