Case_为什么在这里有两个不同的输出？

发布于 2025-02-11 17:49:30 字数 559 浏览 1 评论 0原文

时，我无法理解为什么输出有所不同

当我使用两种不同的case_时：选项1：

x = 5
y = print("goodmorning")
z = print("goodafternoon")
q = print("goodevening")
case_when(x > 3 ~ y, x < 8 ~ z)

输出1：

[1] "goodmorning"

选项2：

x = 5
case_when(x > 3 ~ print("goodmoring"), x < 8 ~ print("goodafternoon"))

输出2：

[1] "goodmoring"
[1] "goodafternoon"
[1] "goodmoring"

有人可以启发我如何导致两个完全不同的输出。我相信case_时，当第一次满足A条件时，它会从Case_case跳出，并且这似乎是第一个代码的，但是为什么它不适合第二个代码呢？

原文

I am failing to understand why the output is different when I use two different cases of case_when:

Option 1:

x = 5
y = print("goodmorning")
z = print("goodafternoon")
q = print("goodevening")
case_when(x > 3 ~ y, x < 8 ~ z)

Output 1:

[1] "goodmorning"

Option 2:

x = 5
case_when(x > 3 ~ print("goodmoring"), x < 8 ~ print("goodafternoon"))

Output 2:

[1] "goodmoring"
[1] "goodafternoon"
[1] "goodmoring"

Can someone enlighten me how this results in two completely different outputs. I believed that case_when sequentially and that it jumps out of the case_case when the first time the a condition is met and this seems to hold for the first piece of code, but why does it not hold for the second code?

分享到QQ

分享到微博