字面值后的尾随字符标志着它的类型。
A trailing character after a literal value establishes its type.
注意如果编译器能够正确地识别类型，就不必使用尾随字符。
Note that you don' t need to use the trailing character when the compiler can figure out the appropriate type.
通过使用s命令并替换一个空替换字符，您可以删除尾随空格。
You can remove trailing blanks from a file by using the s command and substituting a null replacement.
对于ASCII文件，您可以指定文件的字段分隔符、转义字符、是否应包括尾随空白，以及文件的编码。
For ASCII files, you can specify the field delimiter for the file, as well as the escape character, whether trailing blanks should be included, and the encoding for the file.
然而，由于正则表达式必需能够匹配全部由空格组成的字符串，整个捕获组通过尾随一个？量词而成为可选组。
However, since the regex must be able to match whitespace-only strings, the entire capturing group is made optional by adding a trailing question mark quantifier.
若要在字符串值中包括前导或尾随空格，则该值必须用单引号或双引号括起来。
To include preceding or trailing Spaces in the string value, the value must be enclosed in either single quotes or double quotes.
如果你真的要数小数点后的位数，你可能要转换为字符串，删除任何尾随零，看看小数点落在哪里。
If you actually want to count the number of decimals, you'd probably have to convert to a string, remove any trailing zeroes, and see where the decimal point landed.
返回一个字符串的副本年代尾随空格移除。
Return a copy of the string s with trailing whitespace removed.
对象实例移除前导空白字符和尾随空白字符。
Removes leading and trailing white space from a String object instance.
对象实例移除前导空白字符和尾随空白字符。
Removes leading and trailing white space from a String object instance.
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