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variable expansion
Vertaling van "variable expansion" in Chinees
变量扩充
变量扩展
Finally, support for delayed environment variable expansion has been added.
终于添加了延迟环境变量扩充的支持。
If delayed variable expansion is enabled, the above examples could be written as follows to work as intended
如果延迟的变量扩充被启用，可以将上面例子写成以下所示，以达到预期效果：
Delayed environment variable expansion allows you to use a different character (the exclamation mark) to expand environment variables at execution time.
延迟环境变量扩充允许您使用一个不同的字符（惊叹号）在执行时间扩充环境变量。
Delayed environment variable expansion is useful for getting around the limitations of the current expansion which happens when a line of text is read, not when it is executed.
考虑到读取一行文本时所遇到的目前扩充的限制时，延迟环境变量扩充是很有用的，而不是执行的时候。
Youcan enable or disable delayed environment variable expansion for aparticular invocation of CMD.EXE with the/V:ON or/V:OFF switch.
您可以用/V：ON 或/V：OFF命令行开关，为 CMD.EXE 的某个调用而启用或停用延迟环境变量扩充。
" /"on a line by itself marks the end of the variable expansion naming. The next line is the first line that will be repeated using the named rules.
一行上的" /" 本身标志着变量扩展命名的结束。下一行是将使用命名规则重复的第一行。
KraussMaffei Berstorff single-screw extruders feature a simple and robust machine construction, low need for maintenance, highest torques, and free structuring of the procedure part. Thanks to their variable expansion options, the single-screw extruders are used worldwide for a wide variety of process tasks. Thus outstanding outputs and dimensions were achieved with the KE single-screw extruder.
克劳斯玛菲贝尔斯托夫的单螺杆挤出机以其简单而坚固的机器设计、较低的保养需求、最大的扭矩，以及工艺部分的可扩展性而见长。 通过各种选装配置，单螺杆挤出机能够被用于完成全世界各种不同的工艺任务。 因此，采用KE型单螺杆挤出机能够实现特别的性能与产品尺寸。
If the length is not specified, then it defaults to theremainder of the variable value. If either number (offset or length) isnegative, then the number used is the length of the environment variablevalue added to the offset or length specified. %PATH:~-10%would extract the last 10 characters of the PATH variable. %PATH:~0,-2%would extract all but the last 2 characters of the PATH variable.Finally, support for delayed environment variable expansion has been added.
如果没有指定长度，则采用默认值，即变量数值的余数。 如果两个数字（偏移量和长度）都是负数，使用的数字则是环境变量数值长度加上指定的偏移量或长度。 %PATH：~-10%会提取 PATH 变量的最后十个字符。
Non-Fortran files use a separate syntax for defining template blocks that should be repeated using a variable expansion similar to the named repeat rules of the Fortran-specific repeats.
非Fortran文件使用单独的语法来定义模板块，应使用类似于Fortran特定重复的命名重复规则的变量扩展来重复这些模板块。
Similarly, the following examplewill not work as expected: set LIST= for %i in ( ) do set LIST=%LIST i echo %LIST%in that it will NOT build up a list of files in the current directory, but instead will just set the LIST variable to the last file found.Again, this is because the %LIST% is expanded just once when theFOR statement is read, and at that time the LIST variable is empty.So the actual FOR loop we are executing is: for %i in ( ) do set LIST= %iwhich just keeps setting LIST to the last file found.Delayed environment variable expansion allows you to use a differentcharacter (the exclamation mark) to expand environment variables atexecution time.
同样，以下这个例子也不会达到预期效果： set LIST＝ for %i in （ ） do set LIST＝%LIST i echo %LIST%原因是，它不会在目前的目录中建立一个文件列表，而皇墙？LIST 变量设成找到的最后一个文件。 这也是因为 %LIST% 在FOR 语句被读取时，只被扩充了一次；而且，那时的 LIST 变量是空的。 因此，我们真正执行的 FOR 循环是： for %i in （ ） do set LIST＝ %i这个循环继续将 LIST 设成找到的最后一个文件。
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