added when while loop is used (#34128)

2019-03-21 15:13:41 +08:00 · 2019-03-21 15:13:41 +08:00 · 08cb91afc5
parent eef19480f0
commit 08cb91afc5
1 changed files with 1 additions and 1 deletions
--- a/guide/english/cplusplus/while-loop/index.md
+++ b/guide/english/cplusplus/while-loop/index.md
@ -2,7 +2,7 @@
 title: While-loop
 ---

-A while loop statement repeatedly executes a target statement as long as a given condition is true.
+A while loop statement repeatedly executes a target statement as long as a given condition is true. It is often used when the number of iterations is unknown.

 Syntax:
 ```C++