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command >> filename °Ñ±ê×¼Êä³öÖØ¶¨Ïòµ½Ò»¸öÎļþÖÐ(×·¼Ó)
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LINUXÄÚºËÖÐminºÍmaxºêµÄѧϰ

add linux kernel min, max define:
include/linux/kernel.h
/*
 * min()/max() macros that also do
 * strict type-checking.. See the
 * "unnecessary" pointer comparison.
 */
#define min(x,y) \
(__extension__\
({ \
        typeof( ......

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