Golang学习笔记 （一）

小记一下go的语法，风格

关于Exported names ，首字母不是大写的都不能作为输出。也不能被导入到另一个包中然后使用。

int型在32位系统上为32位，在64位系统上为64位，和C一样。

Variables declared without an explicit initial value are given their zero value.变量未被赋值时：0 for numeric types,

false the boolean type, and

“” (the empty string) for strings.

import ：在同时引入多个包时，可以放在括号中。如

import (
"fmt"
"math"
)

Type conversions:类型转换 The expression T(v) converts the value v to the type T. 类型转换时，必须显式转换，Unlike in C, in Go assignment between items of different type requires an explicit conversion.

Type inference: the variable’s type is inferred from the value on the right hand side.

fmt.Printf() fmt.Printfln()(输出行)

Constants:

Constants are declared like variables, but with the const keyword.

*Constants can be character, string, boolean, or numeric values.*

*Constants cannot be declared using the := syntax.*

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