我正在尝试在 VSCode 中编辑 Java 文件,但遇到了来自 VSCode 的大量错误。例如:
The type java.lang.Object cannot be resolved.
It is indirectly referenced from required .class files
String cannot be resolved to a type
System cannot be resolved
Run Code Online (Sandbox Code Playgroud)
我尝试运行 Java clean 来清理工作区,并尝试重新安装 Java 扩展包。无论哪种方式,问题仍然存在。
我无法摆脱这个,这真的很烦人!如果可以的话请帮忙!谢谢你。
我有以下代码:
import click
@click.command()
def main():
while True:
pass
try:
main()
except KeyboardInterrupt:
print('My own message!')
Run Code Online (Sandbox Code Playgroud)
当我按 Ctrl+C 退出程序时,我想打印自己的消息。但是,单击会拦截错误,这是输出:
^C
Aborted!
Run Code Online (Sandbox Code Playgroud)
如何阻止 click 处理错误?
我的目标是在 SwiftUI 中创建一个从 0 开始的视图。当你按下视图时,计时器应该开始向上计数,再次点击停止计时器。最后,当您再次点击以启动计时器时,计时器应从 0 开始。
这是我当前的代码:
import SwiftUI
struct TimerView: View {
@State var isTimerRunning = false
@State private var endTime = Date()
@State private var startTime = Date()
let timer = Timer.publish(every: 0.001, on: .main, in: .common).autoconnect()
var tap: some Gesture {
TapGesture(count: 1)
.onEnded({
isTimerRunning.toggle()
})
}
var body: some View {
Text("\(endTime.timeIntervalSince1970 - startTime.timeIntervalSince1970)")
.font(.largeTitle)
.gesture(tap)
.onReceive(timer) { input in
startTime = isTimerRunning ? startTime : Date()
endTime = isTimerRunning ? input : endTime
} …Run Code Online (Sandbox Code Playgroud) I have a string like so:
"initWithType:bundleIdentifier:uniqueIdentifier:"
Run Code Online (Sandbox Code Playgroud)
and two lists like so:
['long long', 'id', 'id']
['arg1', 'arg2', 'arg3']
Run Code Online (Sandbox Code Playgroud)
and want to end up with the string:
"initWithType:(long long)arg1 bundleIdentifier:(id)arg2 uniqueIdentifier:(id)arg3"
Run Code Online (Sandbox Code Playgroud)
As you may see, I effectively need to replace every nth semicolon with the nth string in each list (plus a little formatting with parentheses and a space).
我一直在尝试使用.format和*拆包经营者,但都收效甚微。
我创建了一个自定义属性包装器,它作为其 setter 和 getter 从文件中写入和读取。
@propertyWrapper struct Specifier<Value> {
let key: String
let defaultValue: Value
let plistPath: String
var prefs: NSDictionary {
NSDictionary(contentsOfFile: plistPath) ?? NSDictionary()
}
var wrappedValue: Value {
get {
return prefs.value(forKey: key) as? Value ?? defaultValue
}
set {
prefs.setValue(newValue, forKey: key)
prefs.write(toFile: plistPath, atomically: true)
}
}
}
Run Code Online (Sandbox Code Playgroud)
我现在想在设置视图中使用它,如下所示:
struct PrefsView: View {
@Specifier<Bool>(key: "enable", defaultValue: true, plistPath: "/Library/path/to/Prefs.plist") private var enable
var body: some View {
Form {
Toggle("Enable", isOn: $enable)
}
}
} …Run Code Online (Sandbox Code Playgroud)