Go notes (1) go language introduction and characteristics

1. Go The origin of language

    Go Language is also called Golang Language , It's Google Goggle The company to launch .
     Traditional languages such as c++, People spend too much time learning how to use the language ,
 Rather than how to better express the writer's thoughts , Compile at the same time 
     It takes too long , For writing - compile - The cycle is too long to run this chain .
 Dynamic languages such as Python, Since there are no strongly typed constraints , Many problems need to be found at run time ,
 This low-level error should be left to the compiler to find . therefore Go The birth of .

2. Go Characteristics of language

	Go Language ensures the security and performance of statically compiled languages , It also achieves the speed and maintainability of dynamic language development ,
  It's been described Go Language ： Go = C + Python ,  explain Go Language has both C The speed of static language programs , It can reach Python The rapid development of dynamic language .Go The languages are as follows 
	 characteristic ：
	1.  Automatic garbage collection 
	C/C++ The biggest headache is the pointer problem , If you are not careful, the pointer will go wild or cross the boundary again . stay Go Don't worry about language anymore , Don't worry delete or   person free, The system will automatically recycle .
	2.  Function can return multiple values 
	 This is amazing , Most languages can only return one value ,Go Languages can return multiple values . This function makes developers no longer have to think hard 
	 How to return value design , There is no need to define a structure for value transfer .
	3.  Concurrent programming 
	Go Language is naturally concurrent , Just the keywords “go” You can make the function execute concurrently , Make concurrent programming easier , This is also Go The biggest advantage of language 
	 potential .
	4.  No dependence on hell ,  Even glibc
	5.  Compile once , Copy anywhere , Deployment is extremely convenient