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内建变量类型

Go语言内置变量类型

  • bool, string
  • (u)int, (u)int8, (u)int16, (u)int32, (u)int64, uintptr
  • byte, rune(字符型,类似于C语言的char类型)
  • float32, float64, complex64, complex128 强制类型转换
  • 类型转换是强制的,没有隐式转换
var a, b int = 3, 4

var c int = math.Sqrt(aa + bb)

var c int = int(math.Sqrt(float64(a*a + b*b)))