两个日期之间的间隔天数

计算两个日期之间的间隔天数。date1   date2之间的间隔天数，求教
比如：20071218    20080321之间的天数

1. * Example generated by -dataex-. To install: ssc install dataex
   
2. clear
   
3. input long Stkcd int year long(date1 date2)
   
4. 2 2007 20071218 20080321
   
5. 2 2007 20071030 20080321
   
6. 2 2007 20071030 20080321
   
7. 2 2007 20071030 20080321
   
8. 2 2007 20071220 20080321
   
9. 2 2007 20071219 20080321
   
10. 2 2007 20071218 20080321
    
11. 2 2007 20071030 20080321
    
12. 2 2007 20071030 20080321
    
13. 2 2007 20071030 20080321
    
14. 2 2007 20071030 20080321
    
15. 2 2007 20071030 20080321
    
16. 2 2007 20071030 20080321
    
17. 2 2007 20071030 20080321
    
18. 2 2007 20071011 20080321
    
19. 2 2007 20070911 20080321
    
20. 2 2007 20070828 20080321
    
21. 2 2007 20070828 20080321
    
22. 2 2007 20070828 20080321
    
23. 2 2007 20071030 20080321
    
24. end

复制代码

1. tostring date1 date2,replace
   
2. gen diff=date(date2,"YMD")-date(date1,"YMD")
   
3. list

复制代码

蓝色 发表于 2019-8-26 17:37

收到，谢谢大神