Golang的坑

1. https://i6448038.github.io/2017/07/28/GolangDetails/

2. new(type)不为nil
   fmt.Println(new(int)==nil) # false
   var i *int
   fmt.Println(i==nil) # true

3. 一个包里可以有多个init函数,多个init函数的调用顺序 https://golang.org/ref/spec#Program_initialization_and_execution
   

4. 猜猜下面的代码输出为多少?
   package main

   import "fmt"
   import "strconv"
   
   func main() {
       div,_ := strconv.ParseFloat("0", 64)
       a := 37.2-float64(int(3/div))*150
       x:=fmt.Sprintf("%f", a)
       fmt.Println(x)   // 1383505805528216371200.000000
   }