如何判断字符串是否为空串？
有时候，很难判断一个字符串是否是可翻译的。
最后，解析返回的字符串以判断通知与好友之间的具体关联。
Finally, we parse the returned string to determine which note is associated with which buddy.
你容易判断两个字符串包含同样的字符？
How do you tell whether two strings contain the same characters?
Substring函数使用一个分隔符和索引来判断要从进入的源字符串提取哪些文本。
The Substring function uses a delimiter and index to determine what text to extract from the incoming source string.
在InfoSphere Warehouse的Data Exploration视图中，可以浏览数据库表的示例、浏览大型文本列的内容和判断文本字符串的平均长度。
With the InfoSphere Warehouse data Exploration view you can browse samples of database tables, browse the contents of large text columns, and determine the average length of text strings.
扫描输入字符串以及判断是何标记的过程称作记号赋予器(tokenizer)。
The process that scans an input string and determines what the tokens are is called the tokenizer. In the query.
如果已经接收（您是可以判断的，因为它的长度是大于 0 的）到流量事件字符串，那么下一步就是显示它。
The next section emits the traffic incident string to the display, if it has been received (which you know, because it has a non-zero length).
缺省情况下，Modeler将向项目交换名称的结尾追加时间和日期字符串，因此您可以轻松判断它是在何时导出的。
As a default, Modeler appends a time and date string to the end of the project interchange name so you can easily tell when it was exported. To import the project interchange file.
这个片段被判断为字符串，即使它的值是Boolean函数。
This fragment is evaluated as a string, even if its value was a Boolean function.
好的，一个普通的任务是判断给定的子字符串是否能在该值中任意处找到。
Well, one very common task is determining whether or not a given substring can be found anywhere within that value.
长度大于0的字符串在解析为Boolean函数时，总是被判断为True，即使它的值是字符串'false '时亦是如此。
A string whose length is greater than zero is always evaluated as True when resolved to a Boolean function, even if its value is the string 'false'.
然后你遍历整个字符串，每个字母的个数都累加到对应的计数器里面，可能会用到分支条件判断。
Then you could traverse the string and, for each character, increment the corresponding counter, probably using a chained conditional.
不能被调用或者实例化。可以用来判断实例是否为字符串或者字符编码。
It cannot be called or instantiated, but it can be used to test whether an object is an instance of or . isinstance(obj, basestring) is equivalent to isinstance(obj, (str, unicode)).
不能被调用或者实例化。可以用来判断实例是否为字符串或者字符编码。
It cannot be called or instantiated, but it can be used to test whether an object is an instance of or . isinstance(obj, basestring) is equivalent to isinstance(obj, (str, unicode)).
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