intarrayLength = [array1count]; //访问数组中特定位置的一个对象 NSString*string = [array1objectAtIndex:0]; //是否包含指定对象 BOOLisInArray = [array1containsObject:string1]; //对象在数组中的位置 intindex = [array1indexOfObject:string1]; //遍历一个数组中的值 for(NSString*objinarray1)...
NSLog(@"未排序:\n%@",_mutiArray); NSLog(@"根据name排序:\n%@",[_mutiArray sortedArrayUsingDescriptors:[NSArray arrayWithObjects:_sorter, nil]]); NSLog(@"根据work排序:\n%@",[_mutiArray sortedArrayUsingDescriptors:[NSArray arrayWithObjects:_sorter2, nil]]); [_mutiArray release]; [_sorte...
数组”（array）和“对象”（object）两者的区别 数组”(array)和“对象”(object)两者都可以⽤来表⽰数据的集合。⽐如有⼀个数组a=[1,2,3,4]，还有⼀个对象a={0:1,1:2,2:3,3:4}，然后你运⾏alert(a[1])，两种情况下的运⾏结果是相同的！这就是说，数据集合既可以⽤数组表⽰，也...
X = createArray(1,5,"SimpleValue") X = 1×5 SimpleValue array with properties: prop1 The value ofprop1in all elements of the array is the default value defined by the class. [X.prop1] ans = 0 0 0 0 0 LikeArgument Use theLikename-value argument to create an object array with ...
For each own property key P of O such that P is an array index, in ascending numeric index order, do a. Add P as the last element of keys. For each own property key P of O such that Type(P) is String and P is not an array index, in ascending chronological order of property ...
如果你只要获取到可枚举属性,可以用Object.keys或用for...in循环(for...in会获取到原型链上的可枚举属性,可以使用hasOwnProperty()方法过滤掉)。 获取不可枚举的属性,可以使用Array.prototype.filter()方法,从所有的属性名数组(使用Object.getOwnPropertyNames()方法获得)中去除可枚举的属性(使用Object.keys()方法获...
Object initializers can set indexers, in addition to assigning fields and properties. Consider this basicMatrixclass: C# publicclassMatrix{privatedouble[,] storage =newdouble[3,3];publicdoublethis[introw,intcolumn] {// The embedded array will throw out of range exceptions as appropriate...
For example:Get-Process | Where-Object -Value "svchost" -NotIn -Property ProcessName If the value ofValueis a single object, PowerShell converts it to a collection of one object. If the property value of an object is an array, PowerShell uses reference equality to determine a match.Where...
14、QList<QByteArray> dynamicPropertyNames() (实用) 获取所有动态属性名。 15、bool event(QEvent *e) 事件处理,一般由子类重写。 16、bool eventFilter(QObject *watched, QEvent *event) void installEventFilter(QObject *filterObj) void removeEventFilter(QObject *obj) ...
Vue3 plugin for displaying and editing the array-of-object in Excel style. - cscan/vue3-excel-editor