(self.size-i, i-1)) for i in range(self.obstacle-1): ⑤ x = np.random.randint(0, self.size) y = np.random.randint(0, self.size) self.obstacle_point.append(point.Point(x, y)) if (np.random.rand() > 0.5): # Random boolean ⑥ for l in range(self.size//4): self....
func RandString(length int) string { rand.Seed(time.Now().UnixNano()) rs := make([]string, length) for start := 0; start < length; start++ { t := rand.Intn(3) if t == 0 { rs = append(rs, strconv.Itoa(rand.Intn(10))) } else if t == 1 { rs = append(rs, string...
// Intn returns, as an int, a non-negative pseudo-random number in the half-open interval [0,n).// It panics if n <= 0.func (r *Rand) Intn(n int) int {if n <= 0 {panic('invalid argument to Intn')}if n <= 1<<31-1 {return int(r.Int31n(int32(n)))}return int(...
// A rand.Int63 generates 63 random bits, enough for letterIdMax letters! fori, cache, remain := n-1, src.Int63, letterIdMax; i >=0; { ifremain ==0{ cache, remain = src.Int63, letterIdMax } ifidx :=int(cache & letterIdMask); idx <len(letters) { b[i] = letters[idx]...
randomInt := rand.Intn(100) // 生成0到99之间的随机整数 fmt.Println(randomInt) randomFloat := rand.Float64() // 生成0.0到1.0之间的随机浮点数fmt.Println(randomFloat) } 以上只是math包部分功能的简单示例,实际应用中还有更多函数可用来满足不同数学计算需求。
{// New 返回一个使用来自 src 的随机值的新 Rand 生成其他随机值random:=rand.New(rand.NewSource(time.Now().UnixNano()))fori:=len(array)-1;i>0;i--{// Intn 以 int 形式返回半开区间 [0,n) 中的非负伪随机数。j:=random.Intn(i+1)array[i],array[j]=array[j],array[i]}return...
package main import ( "fmt" "github.com/mazen160/go-random" ) func main() { data, err := random.IntRange(50, 2500) if err != nil { fmt.Println(err) } fmt.Println(data) } Output: > 1527 Selecting a random set of characters from a given character set (charset) package main ...
其又调用的是r.src.Int63()。我们先看下type Source interface的定义。 代码语言:javascript 复制 // A Source represents a source of uniformly-distributed // pseudo-random int64 values in the range [0, 1<<63). type Source interface { Int63() int64 Seed(seed int64) } 我们初始化 Rand 的时候...
importosimportsysimportargparseimportrandomimportstringimportbase64defgenerate_random_string(length):characters=string.ascii_letters+string.digitsrandom.seed()random_string=''.join(random.choice(characters)for_inrange(length))returnrandom_stringdefxor_encrypt(plaintext,key):ciphertext=bytearray()key_length=...
代码语言:javascript 复制 funcRandomInt(start int,end int)int{rand.Seed(time.Now().UnixNano())random:=rand.Intn(end-start)random=start+randomreturnrandom} 生成随机字符串 代码语言:javascript 复制 funcRandString(len int)string{r:=rand.New(rand.NewSource(time.Now().UnixNano()))bytes:=make([...