在JavaScript中,以下变量命名正确的是()。
A: number_1
B: 2number
C: s+m
D: de2$f
A: number_1
B: 2number
C: s+m
D: de2$f
举一反三
- 下列选项中,JavaScript变量名称不合法的是( ) A: number_1 B: 2number C: sum D: number$f
- 下列表达式可以作为判断一个整数number为奇数的是() A: number // 2 == 1 B: number // 2 == 0 C: number % 2 == 1 D: number / 2 == 1
- If S is an infinite set of real numbers, is there a number in S that is less than every other number in S ?() (1)Every number in S is an integer. (2)Every number in S is positive. A: 条件(1)充分,但条件(2)不充分. B: 条件(2)充分,但条件(1)不充分. C: 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分. D: 条件(1)充分,条件(2)也充分. E: 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
- The girl is working in the: (1) The room number the girl will rent: (2) The price to be paid is: (3) The girl’s phone number is: (4) 2()
- 以下程序的输出结果是___________。 number = 10 if number % 2 == 0: print(number, 'is even') elif number % 5 == 0: print(number, 'is multiple of 2')