以下程序段运行时，如果从键盘输入1298再回车，则输出结果为 int n1, n2; scanf("%d", &n2); while (n2 != 0) { n1 = n2 % 10; n2 = n2 / 10; printf("%d", n1); }
举一反三
- 以下程序段运行时,如果从键盘输入1298再回车,则输出结果为int n1, n2;scanf("%d", &n2);while (n2 != 0){ n1 = n2 % 10;n2 = n2 / 10;printf("%d", n1);}
- 以下程序段运行时，如果从键盘输入1298再回车，则输出结果为 int n1, n2; scanf("%d", &n2); while (n2 != 0) { n1 = n2 % 10; n2 = n2 / 10; printf("%d", n1); }
- 设n=n1n2，(n1，n2)=1，n1≥1，n2≥1，则φ(n)=φ(n1)φ(n2).若n=n1n2，n1≥1，n2≥1，则φ(n)=φ(n1)φ(n2)?
- 9.以下程序段运行时，如果从键盘输入1298再回车，则输出结果为int n1, n2;scanf("%d", &n2);while (n2 != 0){ n1 = n2 % 10; n2 = n2 / 10; printf("%d", n1);} A: 1298 B: 1 C: 9 D: 8921
- 下面的关系哪些构成函数．(1){(n1，n2)|n1，n2∈N，n1+n2＜10}；(2){(n1，n2)|n1，n2∈R，n2=n12}；(3){(n1，n2)|n1，n2∈R，n22=n1)．