与语句“for（k=0;k<=10;++k）sum+=k; ”不等价的语旬是
A.k = 0; while (1) { sum += k; if (++k >10) break; }
B.k=0; while (k <= 10) { sum+=k++; if (k> 10) break; }
C.k = 0; do {sum +=k;} while(k++<= 10);
D.k = 0; while (k<= 10) sum+=k++;
正确答案C 
与语句“for（k=0;k<=10;++k）sum+=k; ”不等价的语旬是
A.k = 0; while (1) { sum += k; if (++k >10) break; }
B.k=0; while (k <= 10) { sum+=k++; if (k> 10) break; }
C.k = 0; do {sum +=k;} while(k++<= 10);
D.k = 0; while (k<= 10) sum+=k++;
正确答案C 