Question = input("Welcome to the meal chooser program. The base cost is $9.99. Would you like to choose beef, chicken, or the vegetarian option?:")
if Question.casefold() == "beef":
print("Thank you. Your total cost is","$",'{:.2f}'.format(B))
elif Questio
我正确地输入了命令,但仍然收到以下错误:
TypeError: Cannot read property 'call' of undefined at evalmachine.:1:19
at ContextifyScript.Script.runInContext (vm.js:35:29)
at Object.exports.runInContext (vm.js:67:17) at TruffleInterpreter.interpret (/usr/lib/node_modules/truffle/lib/repl.js:99:17)
at bound (doma
你好,我正在尝试制作一个不和谐的机器人来解除某人的禁令,但它给了我这个错误: Unhandled promise rejection: Error [BAN_RESOLVE_ID]: Couldn't resolve the user ID to unban.
at GuildMemberManager.unban (C:\Users\Jakub Sokol\Documents\Coding\Discord Bots\Smiley\node_modules\discord.js\src\managers\GuildMemberManager.js:210:36)
at
我面临着与npm安装相关的问题,我已经尝试了所有的注册表命令,但仍然不能解决问题。
npm timing stage:rollbackFailedOptional Completed in 0ms
npm timing stage:runTopLevelLifecycles Completed in 2109ms
npm verb stack SyntaxError: Unexpected token < in JSON at position 0 while parsing near '<HTML><HEAD>
npm verb
有许多与invalid JUMP错误相关的问题。
当使用geth命令行在testrpc上调试固化契约时,我得到了这样的结果:
Error: VM Exception while processing transaction: invalid JUMP at 3802e3b6eefb98
150918c4ddfaabf93c18d6c41aaa2682c5cdbc0a9a9a6a2853/cb611bab0cd7c4f21f7cb0b91ad45
f1330995289:13717
at web3.js:3119:20
at web3.js:6023:15
at web3
我有这个接触开始的方法,使精灵跳。如果我继续敲击雪碧,它就会持续上升。我想要停止这一点,但我也需要能够跳过另一个物体大约0.8秒后。
override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
/* Called when a touch begins */
if moving.speed > 0 {
for touch: AnyObject in touches {
let location = touch.locationInNode(sel