C#怎么分割字符串 C# String.Split方法的多种用法

string str = "apple,banana,orange";
string[] fruits = str.Split(',');

// 输出结果：apple  banana  orange
foreach (string fruit in fruits)
{
    Console.WriteLine(fruit);
}

string str = "apple,banana;orange|grape";
char[] separators = { ',', ';', '|' };
string[] fruits = str.Split(separators);

// 输出所有水果名称
foreach (string fruit in fruits)
{
    Console.WriteLine(fruit);
}

string str = "apple|||banana|||orange";
string[] separators = { "|||" };
string[] fruits = str.Split(separators, StringSplitOptions.None);

foreach (string fruit in fruits)
{
    Console.WriteLine(fruit);
}

string str = "apple,,banana,,,orange";
string[] fruits = str.Split(',', StringSplitOptions.RemoveEmptyEntries);

// 不会输出空字符串
foreach (string fruit in fruits)
{
    Console.WriteLine(fruit);
}

string str = "one,two,three,four,five";
string[] result = str.Split(',', 3); // 最多返回3个元素

// 结果：[0]="one", [1]="two", [2]="three,four,five"
foreach (string s in result)
{
    Console.WriteLine(s);
}

string str = ",apple,,banana,";
char[] sep = { ',' };
string[] parts = str.Split(sep, 3, StringSplitOptions.RemoveEmptyEntries);