查询词典 null string

The binary + operator performs string concatenation when one or both operands are of type string. If an operand of string concatenation is null, an empty string is substituted. Otherwise, any non-string argument is converted to its string representation by invoking the virtual ToString method inherited from type object.

由此可知 C#的加号运算子预设就支援字串串加的功能，只要一群字串串接的物件中只要有一个以上的物件型别是「字串」的话，就会全部变成「字串相加」，只要遇到「非字串」的物件，预设会使用继承至 object 物件的 ToString 方法进行转型，让所有物件都变成「字串」后进行相加动作。

If the number specified in left is less than or equal to zero, then returns a null string, so LEN function returns 0

如在LEFT 内的数值是等於或小於0则输出为空白，所以LEN长度为0

Its a good idea to check for null object reference to prevent NullReferenceException when it comes to objects but in case of Strings sometimes you get a string without any value or called as Empty string.

它的一个不错的主意，以检查空对象引用，以防止NullReferenceException时候，但物体的情况下弦乐有时你一个字符串没有任何价值或称为空字符串。

If no errors are present then an empty or null string is returned.

如果没有错误存在，然后一空或空字符串返回。

To let users select the file to import, specify a null string for filename .

为了让用户选择要导入的文件，文件名指定一个空字符串。

Null String Variant cannot be converted to a character.

不能将空字符串变量转换为字符。

Returns a null string if the index is invalid or if the specified sub-expression did not participate in a match.

如果索引无效或指定的子表达式未参与到匹配中，则返回空字符串。

GetBufferSysStringLen(b + 1;::WideCharToMultiByteCP_ACP,// ANSI Code Page 0,// no flags b,// source widechar string -1,// assume NUL-terminated p,// target buffer SysStringLen(b+1,// target buffer length NULL,// use system default char NULL;// don''t care if default used s.

注意这个代码使用与：：WideCharToMultiByte 相同的参数值。所以你只能在想要改变这些参数进行转换时使用该技术。

Each string is null terminated, and the unformatted section of the current table, is separated from the formatted section of the next table, with a double null.

每个字符串是空终止，以及当前表的格式化的部分，是从下表格式的部分分离，双空。

In morpheme-based morphology, a null morpheme is a morpheme that is realized by a phonologically null affix (an empty string of phonological segments).

译文（不译，汉改高手是不懂的：在以词素为基础的字形学中，一个空白词素是由音韵学的空白词諁。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。