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...
Cannot assign to property; 'self' is immutable Programming Languages Swift Swift scotteg Created Sep ’15 Replies 5 Boosts 1 Views 19k Participants 3 Here's the scenario. A protocol Paintable requires a property primaryColor with a getter and setter. protocol Paintable { var primary...
问导致"Cannot assign to property：‘QMChatViewController’is immutable“的自我EN我有一个使用QuickBlox...
@State是一个属性包装器(property wrapper),被设计用来针对值类型进行状态管理;用于在Struct中mutable值类型 structUser{ varfirstName ="Bilbo" varlastName ="Baggins" } structContentView:View{ @Stateprivatevaruser =User//1 varbody: someView{
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'; ...
if apple = "2" { - here I get the error cannot assign to immutable value of type 'string' Is it to compare a string with another string ("2")? Or is it to assign a string ("2") to a variable? If your intent is comparison, then you need to review the comparison operators...
How to implement flashing \ blinking text in my TextBlock with Foreground property bound. Getting "Cannot animate x on an immutable object instance" how to implement logout in a WPF application? how to Implement required field validator in WPF? how to implement search functionality in MVVM way...
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...
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...