地鼠每次选好了一块地，打洞，坚持半个月发现地下有块石头，然后他就想绕路了。。。殊不知绕路只会让它离成果越来越远
package main import (
"fmt"
"math/rand"
"time"
) func testFor1() {
var i int
for i = ; i < ; i++ {
fmt.Printf("i=%d\n", i)
}
fmt.Printf("final:i=%d\n", i)
} func testFor2() {
var i int
for i = ; i < ; i++ {
fmt.Printf("i=%d\n", i)
if i > {
break
}
}
fmt.Println(i)
} //打印奇数
func testFor3() {
var i int
for i = ; i < ; i++ {
//正整数，就调出本次循环，所以不打印
if i% == {
continue
}
fmt.Printf("i=%d\n", i)
} }
func testFor4() {
i :=
for i <= {
fmt.Printf("i=%d\n", i)
i = i +
}
} func testFor5() {
i :=
for i <= {
fmt.Printf("i=%d\n", i)
i = i +
}
} func testMultiSign() {
a, b, c := , "hello",
fmt.Printf("a=%d b=%s c=%d\n", a, b, c)
} func testFor6() {
for no, i := , ; i <= && no <= ; i, no = i+, no+ {
fmt.Printf("%d*%d=%d\n", no, i, no*i)
}
} func testFor7() {
for {
fmt.Printf("hello\n")
time.Sleep(time.Second)
}
} //峰云大神-http://xiaorui.cc/2016/03/23/golang%E9%9A%8F%E6%9C%BAtime-sleep%E7%9A%84duration%E9%97%AE%E9%A2%98/
func fengyun() {
rand.Seed(time.Now().UnixNano())
for i := ; i < ; i++ {
x := rand.Intn()
fmt.Println(x)
time.Sleep(time.Duration(x) * time.Second)
}
} //入口执行函数
func main() {
//testFor1()
//testFor2()
//testFor3()
//testFor4()
//testFor5()
//testFor6()
//testFor7()
fengyun()
}