你应该使用一个更具描述性的名称来定义对象的属性,例如“my_object_attribute”或“my_object_variable”。 总之,“cannot assign to property'self' is immutable”错误提示意味着你在尝试将一个不可变的对象属性分配给一个变量名。要解决这个问题,请确保在定义对象的属性时,避免使用“self”。
SwiftUI’s views should be structs, which means they are immutable by default. If this were our own code we could mark methods usingmutatingto tell Swift they will change values, but we can’t do that in SwiftUI because it uses a computed property. If you want to change a proper...
问导致"Cannot assign to property：‘QMChatViewController’is immutable“的自我ENstrong，weak, retain...
//2 Cannot assign to property: 'self' is immutable self.anotherFlag =true //3 Cannot use mutating member on immutable value: 'self' is immutable changeAnotherFlag(true) }) { Text("Test") } } } flag是标记为State的变量,anotherFlag是没有使用属性包装器的普通变量,同时增加了一个mutating的方...
这个错误通常意味着你试图修改一个不可变(immutable)对象的值。 在Python 中,不可变对象包括数值类型(如 int、float)、字符串、元组、布尔值、字节串和 None 等。一旦这些对象被创建,它们的值就不能被改变。如果你尝试修改这些对象的值,Python 解释器会抛出一个 TypeError,提示你“cannot assign to immutable value...
method iterator(){ self.comb.iterator } }; my @a does DNA = 'GAATCC'; .say for @a; # OUTPUT: «GAATCC» 我发现它使用@声明很奇怪,所以我将其更改为声明字符串的自然方式,$: my $a does DNA = 'GAATCC'; ...
self = UIImage(named: name, in: Bundle(path: bundlePath), compatibleWith: nil) as! Self } } 这样之后是编译不过的, 会在self = UIImage(named: name, in: B...发生Cannot assign to value: 'self' is immutable报错 解释 首先,请注意此限制仅适用于classes,在structs 和enums中修改自身加上关键...
Assembly *.dll must be strong signed in order to be marked as a prerequisite. Even after making strong named Assign image source from resource assign RGB color to Fill property Associating a View Model to a View using DataTemplate. Async await still freeze the UI async/await with busyIndicator...
How to fix “Cannot convert value of type 'String' to expected argument type 'Text'" How to fix “Cannot convert value of type '() -> ()' to expected argument type '() -> _’” How to fix “Cannot assign to property: 'self' is immutable” How to fix...
Error: AADSTS90020: The SAML 1.1 Assertion is missing ImmutableID of the user. Error: GetVolumeNameForVolumeMountPoint, 0x80071126, The file or directory is not a reparse point. Error: Source Iphlpsvc, Event ID 4202 Error:0xC004F025 Access Denied: the requested action requires elevated privil...