下面的代码示例演示如何使用Range生成值序列。 C# // Generate a sequence of integers from 1 to 10// and then select their squares.IEnumerable<int> squares = Enumerable.Range(1,10).Select(x => x * x);foreach(intnuminsquares) { Console.WriteLine(num); }/* This code produces...
Y = int32(X) converts the values in X to type int32. Values outside the range [-231,231-1] map to the nearest endpoint. example Input Arguments expand all X— Input array scalar | vector | matrix | multidimensional array Examples collapse all Convert to 32-Bit Signed Integer Variable...
v = range(100) print(v) # range(0, 100) # 在python2.7里,range(100)在内存里立即就创建了,命令行里立马就打出0~99个数 # 在python3里,range(100)是在循环开始的时候才一个一个的创建内存 # 其实这是python3的一个优化,试想,如果又10000万个数,如果立即创建,内存占用会立刻升高 1. 2. 3. 4....
在示例结束时, GetRange 方法用于从列表中获取三个项,从索引位置 2 开始。 在 ToArray 生成的 List<T>上调用 方法,创建一个由三个元素构成的数组。 将显示数组的元素。 C# 复制 运行 using System; using System.Collections.Generic; public class Example { public static void Main() { string[] input...
Creates a shallow copy of a range of elements in the sourceList<T>. C#Copy publicSystem.Collections.Generic.List<T>GetRange(intindex,intcount); Parameters index Int32 The zero-basedList<T>index at which the range starts. count Int32 ...
If s represents a number in exponential notation, it must represent an integer within the range of the Int32 data type without a non-zero, fractional component. NumberStyles.AllowLeadingWhite The ws element at the beginning of s. NumberStyles.AllowTrailingWhite The ws element at the ...
When converting from a double or float to an integral type, the value is rounded towards zero to the nearest integral value. If the resulting value is beyond the destination range, the outcome depends on the overflow checking context. In a checked context, an OverflowException is raised, while...
The first element in value to use. count Type:System.Int32 The number of elements in value to use. Return Value Type:System.String A string that consists of the strings in value delimited by the separator string. -or- String.Emptyif count is zero, value has no elements, or separator an...
... for i in range(10): ... print i ... 0 1 2 3 4 5 6 7 8 9 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 字符串的索引和切片: 按照索引取值(索引是从0开始的,切片不取结尾的,加号可以连接2个字符串): ...
IFormattable Interface IndexOutOfRangeException Class Int16 StructureInt32 Structure Int32 Structure Int32 FieldsInt32 Methods Int32 Methods CompareTo Method Equals Method GetHashCode Method GetTypeCode Method IConvertible.ToBoolean Method IConvertible.ToByte Method ...