标签:void 类型 == rgb value param ast span 场景
X++的集合类,Array,List,Set里没有可以提供排序的功能,如果要对元素排序不是很方便。
D365 FO支持扩展,所以可以很方便地给这些集合类增加排序功能,这里以Array为例,只实现了数值和字符串的排序,至于class和record类型的,目前还没遇到需要排序的场景,就暂时不实现了,用到再说。
[ExtensionOf(classStr(Array))] public final class Array_Class_Extension { /// <summary> /// 使用快速排序法对Array元素进行排序 /// </summary> public void sort() { this.quickSort(1, this.lastIndex()); } private void quickSort( int _left, int _right) { int i = _left; int j = _right; if (i < j) { anytype pivot = this.value(i); while (i < j) { while (this.greaterThan(this.value(j), pivot) && (i < j)) { j--; } this.value(i, this.value(j)); while (this.lessThanOrEqual(this.value(i), pivot) && (i < j)) { i++; } this.value(j, this.value(i)); } this.value(i, pivot); this.QuickSort(_left, i - 1); this.QuickSort(j + 1, _right); } } private boolean greaterThan( anytype _valueLeft, anytype _valueRight) { switch (this.typeId()) { case Types::Int64: case Types::Integer: case Types::Real: return _valueLeft > _valueRight; default: return strCmp(_valueLeft.toString(), _valueRight.toString()) == 1; } } private boolean lessThanOrEqual( anytype _valueLeft, anytype _valueRight) { switch (this.typeId()) { case Types::Int64: case Types::Integer: case Types::Real: return _valueLeft <= _valueRight; default: return strCmp(_valueLeft.toString(), _valueRight.toString()) == -1 || strCmp(_valueLeft.toString(), _valueRight.toString()) == 0; } } /// <summary> /// 把排序后的数组以字符串方式拼接输出 /// </summary> /// <param name = "_delimiter">元素之间的分隔符</param> /// <returns>排序后以分隔符连接的字符串</returns> public str sortString(str _delimiter = "") { this.sort(); str destStr = ""; for (int i = 1; i <= this.lastIndex(); i++) { destStr += this.value(i).ToString() + _delimiter; } if (_delimiter) { return subStr(destStr, 1, strLen(destStr) -1); } else { return destStr; } } }
标签:void 类型 == rgb value param ast span 场景
原文地址:https://www.cnblogs.com/Farseer1215/p/14191879.html