已知变量a的值为10，则表达式 ${ empty a?"good":"bad"}的输出为( )。
A: true
B: false
C: bad
D: good
A: true
B: false
C: bad
D: good
举一反三
- 布尔类型的值包括____和____。 A: True B: Good C: False D: Bad
- is smartphone good or bad for you? A: Good B: Bad
- 已知变量a=3，b=“2”，则表达式a>b的值为： A: True B: False C: 报错 D: false
- Candy my teeth. A: is good for B: are good for C: is bad for D: are bad for
- Many Westerners feel it is a good thing to be different from other people, and perhaps even bad to be “conformist”. 答案: A: True B: False