c#局部变量未被赋值

更新时间2019-11-29 11:33:26

 public static UserData Find(string Value)

{

bool flag = Users.Database == null || Users.Database.Count == 0;

UserData result;

if (flag)

{

result = null;

}

else

{

string value = Value.Replace("*", "");

StringComparison comparisonType = Users.UniqueNames ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;

ulong key;

UserData userData;

bool flag2 = ulong.TryParse(Value, out key) && Users.Database.TryGetValue(key, out userData);

if (flag2)

{

                   result = userData;   userdata 局部变量未被赋值

}

else

{

bool flag3 = Value.StartsWith("*") && Value.EndsWith("*");

if (flag3)

{

foreach (UserData userData2 in Users.Database.Values)

{

bool flag4 = userData2.Username.Contains(value);

if (flag4)

{

return userData2;

}

}

}

bool flag5 = Value.StartsWith("*");

if (flag5)

{

foreach (UserData userData3 in Users.Database.Values)

{

bool flag6 = userData3.Username.EndsWith(value, comparisonType);

if (flag6)

{

return userData3;

}

}

}

bool flag7 = Value.EndsWith("*");

if (flag7)

{

foreach (UserData userData4 in Users.Database.Values)

{

bool flag8 = userData4.Username.StartsWith(value, comparisonType);

if (flag8)

{

return userData4;

}

}

}

foreach (UserData userData5 in Users.Database.Values)

{

bool flag9 = userData5.Username.Equals(value, comparisonType);

if (flag9)

{

return userData5;

}

}

result = null;

}

}

return result;

}

你定义了

UserData userData;

但你没有给它赋一个值啊

你必须给它赋值，才能作为函数返回值的