undeclared identifier

c语言undeclared identifier是什么意思 error C2065:'o' :undeclared identifier error C2065:'a' :undeclared identifier 在C++中,undeclared identifier是什么意思 (Each undeclared identifier is reported only once for each f 不知道是哪里错了.错误error C2065:'printf' :undeclared identifier undeclared identifier是什么意思啊? if(i+j+k==100&&K%3==0&&i*5+j*3+ 编程时出现identifier expected是什么意思? 英语翻译In the general category,the Identifier uniquely identifi 英语翻译in function`maxerror:eles`undeclared(first use in this f 报错：No row with the given identifier exists:13,of class:NHibe fortran程序出现错误,错误 1 error #5082:Syntax error,found IDENTIFIER