内置变量和函数

• func append(slice []Type, elems ...Type) []Type
• func cap(v Type) int
• func close(c chan<- Type)
• func complex(r, i FloatType) ComplexType
• func copy(dst, src []Type) int
• func delete(m map[Type]Type1, key Type)
• func imag(c ComplexType) FloatType
• func len(v Type) int
• func make(t Type, size ...IntegerType) Type
• func new(Type) *Type
• func panic(v interface{})
• func print(args ...Type)
• func println(args ...Type)
• func real(c ComplexType) FloatType
• func recover() interface{}
• type ComplexType
• type FloatType
• type IntegerType
• type Type
• type Type1
• type bool
• type byte
• type complex128
• type complex64
• type error
• type float32
• type float64
• type int
• type int16
• type int32
• type int64
• type int8
• type rune
• type string
• type uint
• type uint16
• type uint32
• type uint64
• type uint8
• type uintptr

以上是go里面的内置builtin 包里面的函数和变量，由于函数方法使用都比较简单,这里就不在赘述了