C# |如何在字典中用TValue替换输入字符串

Dictionary<string, TValue> dictionary = new Dictionary<string, TValue>();
dictionary.Add("key1", value1);
dictionary.Add("key2", value2);
// 添加更多的键值对数据

string input = "key1"; // 输入字符串
TValue newValue = newValue1; // 要替换的TValue值

if (dictionary.ContainsKey(input))
{
    dictionary[input] = newValue;
}

string input = "key3"; // 输入字符串
TValue newValue = newValue3; // 要替换的TValue值

if (dictionary.ContainsKey(input))
{
    dictionary[input] = newValue;
}
else
{
    dictionary.Add(input, newValue);
}