a.c 宣告
byte X[8] = {0};
b.c 引用
extern byte X[8] ;
若使用錯誤方式,VC6.0 compiler 過得去,但把值印出來看就會發現錯誤了。
不曉得其他compiler有沒有防此錯誤。
還是完整點寫出來比較妥當。
%[flags][min field width][precision][length]conversion specifier ----- --------------- --------- ------ ------------------- \ #,* .#, .* / \ \ / \ #,0,-,+, ,',I hh,h,l,ll,j,z,L c,d,u,x,X,e,f,g,s,p,% ------------- --------------- ----------------------- # | Alternate, hh | char, c | unsigned char, 0 | zero pad, h | short, d | signed int, - | left align, l | long, u | unsigned int, + | explicit + - sign, ll | long long, x | unsigned hex int, | space for + sign, j | [u]intmax_t, X | unsigned HEX int, ' | locale thousands grouping, z | size_t, e | [-]d.ddde±dd double, I | Use locale's alt digits t | ptrdiff_t, E | [-]d.dddE±dd double, L | long double, ---------===== if no precision => 6 decimal places / f | [-]d.ddd double, if precision = 0 => 0 decimal places _____/ g | e|f as appropriate, if precision = # => # decimal places G | E|F as appropriate, if flag = # => always show decimal point s | string, ..............------ / p | pointer, if precision => max field width / % | %
format | output | |||||||||||
printf("%08X",32_bit_var); | 0000ABCD | |||||||||||
printf("%lu",32_bit_var); | 43981 | |||||||||||
printf("%'d",32_bit_var); | 43,981 | |||||||||||
printf("%10s","string"); | string | |||||||||||
printf("%*s",10,"string"); | string | |||||||||||
printf("%-10s","string"); | string | |||||||||||
printf("%-10.10s","truncateiftoolong"); | truncateif |
系統環境: win xp ,使用VMware 掛載Fedora11
目的是要在KDevelop下能打中文註解…
gcin下載地點: http://cle.linux.org.tw/gcin/download/
選擇版本: gcin-1.5.5-liu_mdk.i586.rpm 11-Aug-2010 20:29 1.4M
在GNOME桌面環境下,使用FIREFOX下載。
於終端機 CD進入 下載目錄
執行 yum install gcin
開始安裝,執行yes
安裝完成!!!!!!!!! 2010/12/7
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