本文共 958 字，大约阅读时间需要 3 分钟。

1. Swift报错:   Swift Compiler Error Binary oprator '+' cannot be applied to operands of type 'UInt16' and 'UInt8'

错误写法:

       let a:UInt16 = 1_000

       let b: UInt8 =1

       let sum = a + b

       println("sum = \(sum)")

正确写法: 

       let a:UInt16 = 1_000

       let b: UInt8 =1

       let sum = a + UInt16(b)

       println("sum = \(sum)")

2. Swift报错:   Swift Compiler Error Binary oprator '+' cannot be applied to operands of type 'Int' and 'Double'

错误写法:

        let a = 123

        let b = 0.456

        let sum = a + b

        println("sum = \(sum)")

正确写法: 

转载地址：http://epnpi.baihongyu.com/