For example, the directory in Listing 1 shows that the foo.o object is older than the last modification time of the corresponding foo.c source file.
例如，清单1中的目录表明，foo . o对象比相应的foo . c源文件的最后修改日期更新。
The read_file function USES the stat function call to check the modification time of the file, only re-reading the contents of the file if it changed since the last time the file was loaded.
read _ file函数使用stat函数调用检查文件的修改时间，只有在上一次装载之后修改了文件的情况下，它才重新读取文件的内容。
The read_file function USES the stat function call to check the modification time of the file, only re-reading the contents of the file if it changed since the last time the file was loaded.
read _ file函数使用stat函数调用检查文件的修改时间，只有在上一次装载之后修改了文件的情况下，它才重新读取文件的内容。
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