摘要:
1:命名空间2:C与C++字符串的区别和基本操作3:枚举类型命名空间#include #include #include #include #include // using declarations states our intent to use these names from t... 阅读全文
摘要:
确定文件中一行的长度。LRECL= specifies the physical line length of the file. LINESIZE= tells the INPUT statement how much of the line to read.DropOver以及不用此选项的默认执... 阅读全文
摘要:
1:where和If最本质的区别,以及一些小的区别1.1:The WHERE statement examines what is in the input page buffer and selectsobservations before they are loaded in the progr... 阅读全文