你可以使用String.Join:
string[] array = new string[] { "a", "b", "c" };
string separator = " ";
string joined = String.Join(separator, array); // "a b c"
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虽然更详细,但您也可以使用一种StringBuilder方法:
StringBuilder builder = new StringBuilder();
if (array.Length > 0)
{
builder.Append(array[0]);
}
for (var i = 1; i < array.Length; ++i)
{
builder.Append(separator);
builder.Append(array[i]);
}
string joined = builder.ToString(); // "a b c"
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