From 1eb0dfd5f0b6cbed84794754ef42fbf209d6deec Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=AB=98=E6=9D=B0?= Date: Tue, 10 Oct 2017 06:18:46 +0000 Subject: [PATCH] Updates docs/EXPRESSION.md Auto commit by GitBook Editor --- docs/EXPRESSION.md | 15 +++++++++++++++ docs/images/caseexpr.png | Bin 0 -> 8108 bytes 2 files changed, 15 insertions(+) create mode 100644 docs/images/caseexpr.png diff --git a/docs/EXPRESSION.md b/docs/EXPRESSION.md index 96c4a4f..d3b0216 100644 --- a/docs/EXPRESSION.md +++ b/docs/EXPRESSION.md @@ -51,6 +51,21 @@ The syntactic structure of if expression in UReport2 is shown in the figure belo # Case Expression +Case expression is another form of conditional judgement provided by UReport2. It is similar to if judgement, but is simpler. Its syntactic structure is shown in the figure below: + +![](/docs/images/caseexpr.png) + +The case judgement should be put in case\{...}, followed by several conditions and the return value. + +| Examples of case expression | Note | +| :--- | :--- | +| case{A1==100 return "normal ", A1>100 and A1<1000 return "normal value", A1>100 and A1<1000 return 'high'} | The two conditions have different values returned | +| case{A1==100 return "normal ", A1>100 and A1<1000 return "normal value", A1>100 and A1<1000 ‘high'} | There are also several options of the keyword of return in the case expression. | + + + + + diff --git a/docs/images/caseexpr.png b/docs/images/caseexpr.png new file mode 100644 index 0000000000000000000000000000000000000000..cf3c2de35881ff00def7b6d7dc9ff1a3781a0550 GIT binary patch literal 8108 zcmch6cUV)=o8|>YI*Rm;pn^zIdIu?jBE6RYiu5j_cM%Z~P!Uk+0@4WyJt6caNGF6A zkX}OXgtpP&Z)Rub*`3*$XP>=)+;iJ$-#Pbt-}n2Xb+ptd$(YFi0HA!LuA&D3SLpHA 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