On the Golang pointer

The first contact with Golang language, the understanding of Go is temporarily more limited.
The go pointer is simply learned here, and it feels similar to the C pointer you learned before.

The address character of the Go language is &, and the memory address of the corresponding variable is returned by using it before a variable is placed.
adding * to the address is the operation to take the corresponding value of the address.

The practice code is as follows:

package mainimport "fmt"func main() {    var a int = 10    var b string = "hello world"    var c bool = true    var d float32 = 0.002    var e float64 = 0.00000003    fmt.Printf("a变量的地址: %x,a的值为:%d\n", &a,*&a)    fmt.Printf("变量的地址: %x\n", &b)    fmt.Printf("变量的地址: %x\n", &c)    fmt.Printf("变量的地址: %x\n", &d)    fmt.Printf("变量的地址: %x\n", &e)    var x int = 100    var y int = 10    swap(&x,&y)    fmt.Printf("x=%d,y=%d",x,y)} /*利用指针交互xy值 */func swap(x *int, y *int) {    var temp int    temp = *x    /* 保存 x 地址的值 */    *x = *y      /* 将 y 赋值给 x */    *y = temp    /* 将 temp 赋值给 y */ }

Log:

1530808982516.jpg

At present, the understanding of Go language is very limited, I hope I can also step by step learning to accumulate into the lakes and rivers in the great god it! Ha ha