If the optional start is specified, it indicates the character position in the source-string at which the search is to begin.
如果指定了可选的起始位置，则表明它是源字符串中开始进行搜索的字符位置。
The tell method displays where you are in the file (which should be after the first line of text) — in this case, at the 13th character position.
tell方法显示出在文件中的当前位置(应当在第一行文本之后)——在这个示例中，在第13个字符位置。
Figure 4 shows a search for "a", the actual character position of "a" is 2 but the output is 3 because there is a multi-byte character in the string.
图4展示了对“a”的搜索，“a”的实际字符位置是2，而输出的位置是3，原因在于字符串中有多字节字符。
Here, I made sure that the filter logic is only executed once for each event; it is only executed when the character position within the document has changed.
在这里，我保证对每个事件过滤逻辑只执行一次，只有当文档中的字符位置发生变化时才会执行。
A picture occupies a single character position.
一幅图片占用了一个单独的字符位。
A display buffer in which each character position has a corresponding character position on the display surface.
一种显示缓冲器，其中每一字符位置在显示屏上有一个与之相对应的字符位置。
Range object represents a contiguous area in a document, and is defined by a starting character position and an ending character position.
对象表示文档中的一个连续的区域，由一个起始字符位置和一个结束字符位置定义。
A system of a specially designed terminal and light pen. By pointing the pen to the desired character position, data of the character is selected by the system.
一种由特殊构造的终端和一支光笔组成的系统。在屏幕上将笔尖点向期望的字符位置，就能选择那个位置上的字符数据。
With associated Rayleigh Wave Method to detect fracture plane, the attitude, character, position and displacement of small magnitude fault can be forecasted accurately.
若配合利用瑞利波探测法探测断裂面，可以对小断层的产状、性质、位置、断距进行准确预报。
Results The biopsy successful rate was 97.8%. The biopsy successful rate was independent of lesions' character, position and operating doctors. The ratio of the severity complication was only 0.12%.
结果总的穿刺成功率高达97.8%，穿刺成功率与病变的性质、操作医师的经验无关，严重并发症的发生率仅为0.12%。
Results The biopsy successful rate was 97.8%. The biopsy successful rate was independent of lesions' character, position and operating doctors. The ratio of the severity complication was only 0.12%.
结果总的穿刺成功率高达97.8%，穿刺成功率与病变的性质、操作医师的经验无关，严重并发症的发生率仅为0.12%。
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