go-Basic Learning Summary

This is a creation in Article, where the information may have evolved or changed.

1, background: Go is a strongly typed language, because the developer thinks c#,java,c++ is too heavy. And c is too old, developers want to imitate C developed a near the bottom of the third-generation language. In the context of the prevailing multi-core era, go follows the trend and insists on simple principles to create the go

2, basic syntax:

Basic Data type: int16 int32 int64 float32 float64 sring Complex

3, define

Data definition:

Int	Int[]	Slice
var i int;i=0; var i int = 0 ' var i,j int=0,0; I:=0 i,j:=0,0	var arr =[]int{0,1} var arr =[10]int; Arr:=[10]int Arr:=[...] {0,1,2,3}	Pointer to array

This anti-human design, personal expression to adapt for a period of time

4, Key words

4.1:goto

4.2: No while only for

4.3:if no parentheses behind the curly braces

4.4:range Implementation Traversal

5, function

5.1: Affirm func [(T *t)] MyFunc (a arguement) (b returnvalue) {

}

5.2: Multiple values can be returned

6,slice

The essence of 6.1,slice is a pointer to an array. He made up the fixed length of the array.

6.2, affirm

var s = make ([]int,5,6) three parameters for type, length, capacity

var s=[]int{0,1,2,3,4} Create Slice

var s1=s[2:]

6.3, add, delete, traverse

Append for Range

7,map

7.1 Map is a dictionary one-to-one key-value pair

7.2 Declaration

Colors: = map[string]string{}
colors["Red"] = "#da1337"

var colors =make (map[string]string)

7.3 Delete Traverse judgment weight

Delete (Map,key)

For range

Value, Isexit = map["Red"]

If value!= "" {};if isexit{}

8,chanle

8.1 Pipes. Super Mary inside that pipeline, shared resources exist inside to use when out of the inside to take out, so that others can not use. Put it back when you're done. So that people can use it.

8.2 Disclaimer:

C: =make (int chan)

C: =make (int chan 3) back to buffer length

9,go Ctrip

9.1, is the thread

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