表达式 'apple.peach,banana,pear'.find('p') 的值为______________
举一反三
- 已知s="apple,banana,pear,apple",则表达式s.count('apple')的值为_______。
- (4)请将香蕉banana用工具 H—Head，T—Tail从L中取出。 L=(apple,(orange,(strawberry,(banana)),peach),pear)
- 将li=['apple','banana','pear','peach']中多个字符串用","字符进行连接,正确的语句是
- 下面创建数组的方法正确的有（ ）。 A: var fruit=new Array("apple","banana","orange","peach"); B: var fruit={"apple","banana","orange","peach"}; C: var fruit=["apple","banana","orange","peach"]; D: var fruit=["apple","banana","orange",123];
- 下列代码的运行结果是()fruit=('blue',1234,('apple','pear','peach','mango'))fruit[-1][1] A: apple B: pear C: peach D: mango