第五节：Scala-基本运算

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算术操作（+-*/）

//加法scala> var sum =1+2sum: Int = 3// 加法 第二个参数为Long 返回值为Longscala> var sum =1+2lsum: Long = 3// 减法 scala> 1-2res2: Int = -1// 负数 操作scala> 1+ -1res3: Int = 0// 乘法scala> 1*2res4: Int = 2//乘法 第二个参数为Long  返回值为Longscala> 1*2lres5: Long = 2// 除法scala> 1/3res0: Int = 0// 取模scala> 1%3res1: Int = 1

关系操作

scala> 1>2res6: Boolean = falsescala> 1<2res7: Boolean = truescala> 1!=2res8: Boolean = truescala> 1>=2res9: Boolean = falsescala> 1<=2res10: Boolean = true

逻辑操作

scala> var win=truewin: Boolean = true//逻辑与scala> win &&winres11: Boolean = true逻辑或scala> win || winres12: Boolean = truescala> win && !winres14: Boolean = false

对象比较

scala> var name="erhuan"name: String = erhuanscala> var passd="erhuan"passd: String = erhuan//scala 中比较的是内容 并非引用scala> name == passdres15: Boolean = true

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