由网友(涉嫌想见你)分享简介：我要通过火花视图引擎文档，发现有很多的文字显示在$ C起来$下，我找不到任何引用。对于如I was going through the spark view engine documentation and found a lot of literals showing up in code for which I...

我要通过火花视图引擎文档，发现有很多的文字显示在$ C起来$下，我找不到任何引用。对于如

I was going through the spark view engine documentation and found a lot of literals showing up in code for which I couldn’t find any references. For e.g.

！，＃， $ ，！$ ...

这些是什么呢？什么组合是什么意思？他们什么时候投入使用？我失去了更多的文字是precede或来后 {

What are these for? What do the combinations mean? When do they come into use? Am I missing any more literals that precede or comes after {

推荐答案

还有 {的的条件输出。