Code excluded during conditional compilation is completely omitted from the final executable file, so it has no effect on size or performance.
条件编译时被排除的代码在最终的可执行文件中被完全忽略，所以不会对大小或性能有任何影响。
Information in a program that is meant for other programmers (or anyone reading the source code) and has no effect on the execution of the program.
注释：程序中用来解释代码含义和运行效果的备注信息，通常给阅读代码的人准备的。
Copying symbols into folders or removing symbols from them has no effect on your code.
将符号复制到资料夹中，或是从中移除符号，都不会对您的程序码产生任何影响。
Copying symbols into folders or removing symbols from them has no effect on your code.
将符号复制到资料夹中，或是从中移除符号，都不会对您的程序码产生任何影响。
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