摘要:
#include <stdio.h> //整数赋值给字符型变量 //353转2进制:1 01100001 =256 64 32 1 353-256=97 main() { int n=353; char c; c=n; printf("%c %d %x",c,c,c); getchar(); } 阅读全文
摘要:
. bysort rep78: gen ab=_n . order ab,after(rep78) . bysort rep78: gen abb=sum(rep78) . order abb,after(rep78) 阅读全文
摘要:
//1.显示stata的系统路径 . sysdir STATA: D:\Stata17\ //stata软件的安装位置 BASE: D:\Stata17\ado\base\ //stata官方的命令及说明帮助文件 SITE: D:\Stata17\ado\site\ PLUS: C:\Users\z 阅读全文