The go language asks for prime numbers within 1 to 100

The prime number refers to a number of natural numbers greater than 1 that cannot be divisible by other natural numbers except 1 and the integer itself. In other words, the natural number of only two positive factors (1 and self) is prime (also called prime). A number larger than 1, but not prime, is called composite. 1 and 0 are not prime or composite.

package mainimport (    "fmt"    "math")func main() {    var i,j,n int    var a[101] int    for i = 1;i <= 100; i++ {        a[i] = i    }    a[1] = 0        // math.Sqrt 开平方    for i = 2; i < int(math.Sqrt(100));i++ {        for j = i +1;j <= 100;j++ {            if (a[i] != 0) && (a[j] != 0) {                if a[j]%a[i] == 0 {                    a[j] = 0                }            }        }    }    fmt.Println()    for i, n = 1, 0;i <= 100; i++ {        if a[i] != 0 {            fmt.Print(a[i],"\t")            n++        }        if n == 10 {            fmt.Print()            n = 0        }    }    fmt.Printf("\n")}

The go language asks for prime numbers within 1 to 100