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%ld ³¤ÕûÐÍÊý¾Ý  %mld Ö¸¶¨×ֶοí¶È
%o °Ë½øÖÆÕûÊýÐÎʽ  %mo
%x Ê®Áù½øÖÆÕûÊýÐÎʽ  %mx
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%c Ò»¸ö×Ö·û   %mc
%s ×Ö·û´® Óм¸ÖÖÓ÷¨
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   printf("%s", "China");
   Êä³ö China
 2.%ms ¿ØÖÆÎªmÁÐ Èô´®³¤Ð¡ÓÚm, Ôò×󲹿ոñ,´óÓÚÔòÍ»ÆÆmÏÞÖÆ,½«×Ö·û´®ÍêÈ«Êä³ö
 3.%-ms Èô´®³¤Ð¡ÓÚm, ÔòÓÒ²¹¿Õ¸ñ(¾Ó×ó)
 4.%m.ns Êä³öÕ¼mÁÐ,È¡×Ö·û´®×ó¶Ën¸ö×Ö·û.Õân¸ö×Ö·ûÊä³öÔÚmÁеÄÓÒ²à,×󲹿ոñ
 5.%-m.ns m.nͬÉÏ,Õân¸ö×Ö·ûÊä³öÔÚmÁеÄ×ó²à,ÓÒ²¹¿Õ¸ñ.Èôn>m,Ôòm×Ô¶¯È¡nÖµ,±£Ö¤n¸ö×Ö·ûÕý³£Êä³ö
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 2.%m.nf Ö¸¶¨Êä³öµÄÊý¾Ý¹²Õ¼mÁÐ,ÆäÖÐÓÐnλСÊý.ÈôÊýÖµ³¤¶ÈСÓÚm,Ôò×ó¶Ë²¹¿Õ¸ñ
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%e ÒÔÖ¸ÊýÐÎʽÊä³öʵÊý
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 2.%m.ne ºÍ %-m.ne Êä³öÕ¼mÁÐ,nÖ¸Êä³öµÄÊý¾ÝµÄСÊý²¿·Ö(βÊý)µÄСÊýÊýλ,-ͬÉÏ
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¸ñʽ¿ØÖÆÖпÉÒÔ°üº¬×ªÒå×Ö·û,Èç'\n' '\t' '\b' '\r'
Êä³ö%µÄ·½·¨ printf("%f%%", 1.0/3) Êä³ö: 0.333333%
¸ñʽÊäÈë
scanf(¸ñʽ¿ØÖÆ, µØÖ·±íÁÐ) sscanf
ÀàËÆprintf .ÒÔÀý³Ì½âÊÍ
1. scanf("%3d%3d", &a, &b); //ÁÐÊý½ØÈ¡Êý¾Ý
   input -> 123456
   then -> a = 123  b = 456
2. scanf("%2d %*3d %2d", &a, &b) //*±íÊ¾Ìø¹ýÁÐÊý¶ÁÈ¡Êý¾Ý
   input -> 12 345 67
   then -> a = 12 b = 67
3. scanf("%d, %d", &a, &b)
   input -> 1, 4  //ÔÚ¸ñʽ¿ØÖÆÖÐ,Èç¹ûÓзǸñʽ˵Ã÷ÍâµÄ×Ö·û,Ó¦¸ÃÔÚÊäÈëʱÔÚ¶ÔӦλÖÃÊäÈë¸Ã×Ö·û
   scanf("%d   %d", &a, &b)  //ÊäÈëʱ,Á½Êý¾ÝÓ¦Óв»ÉÙÓÚ¸ñʽ¿ØÖÆÖеĿոñ
   scanf(&quo


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printf("hello world!");
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