New and make for Go language

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

The main differences between the new and make of Golang are as follows:

1. Make can only be used to assign and initialize data of type Slice,map,chan; New can assign any type of data

2, the new assignment returns a pointer, that is, the type *t;make return reference, that is, T;

3. The new allocated space is zeroed, and when make is allocated, it is initialized. Effective go for an example, see: Http://golang.org/doc/effective_go.html#allocation_make

For the assignment and initialization of structs, you can do this in addition to using new: T {}, for example

Func testalloc (t *testing. T) {type T struct {n  stringi  intf  float64fd *os. Fileb  []bytes  bool}var T1 *tt1 = new (T) fmt. Println (t1) t2: = T{}fmt. Println (t2) T3: = t{"Hello", 1, 3.1415926, nil, make ([]byte, 2), true}fmt. Println (T3)}

It is important to note that if you initialize a variable using t{}:
1, unlike the C language, the local variable assigned by t{} can be returned, and the space will not be released after returning, for example

Import "FMT" type T struct {    I, J Int}func A (i, J int) T {    I: = t {i, J}    return I}func b {    T = a (1, 2) 
  
   fmt. Println (t)}
  

2, a grammatical problem
When initializing with t{}, the symbol} cannot have a single exclusive line, otherwise it will error, as follows:

Missing ', ' before newline in composite literal

Or

Syntax error:need trailing comma before newline in composite literalnon-declaration statement outside function Bodysyntax error:unexpected}

I've been looking for this problem for a long time before I solve it.