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363 B

package main
import "fmt"
func main(){
var a int = 4
var b int32
var c float32
var ptr *int
fmt.Printf("第一行 -a 变量类型为 %T\n", a)
fmt.Printf("第二行 -b 变量类型为 %T\n", b)
fmt.Printf("第三行 -c 变量类型为 %T\n", c)
ptr = &a
fmt.Printf("a的值为 %d \n",a)
fmt.Printf("ptr为 %d\n", *ptr)
fmt.Printf("ptr %d\n", ptr)
}