Add random module

modules/random/__init__.py

@@ -0,0 +1,20 @@
+from core.builtins.message import MessageSession
+from core.component import on_command
+import secrets
+
+r = on_command('random', alias={'rand': 'random', 'rng': 'random', 'dice': 'random number 1 6', 'random dice': 'random number 1 6'}, developers=[
+               'Dianliang233'], desc='密码学安全随机数生成器',)
+
+
+@r.handle('number <min> <max> {生成区间内的随机整数}',)
+async def _(msg: MessageSession):
+    _min = msg.parsed_msg['<min>']
+    _max = msg.parsed_msg['<max>']
+    random = secrets.randbelow(int(_max) - int(_min) + 1) + int(_min)
+    await msg.finish(''+str(random))
+
+
+@r.handle('choice ... {从选项中选择一个}',)
+async def _(msg: MessageSession):
+    choices = msg.parsed_msg['...']
+    await msg.finish(secrets.choice(choices))