Java - 如何在加号上拆分字符串？
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Java - How to split a string on plus signs?
提问by John Manak
I was trying to split an arithmetic expression (eg "1+2+10+15") on the plus signs. However, I didn't manage to write the appropriate regular expression. I thought this would work:
我试图在加号上拆分算术表达式（例如“1+2+10+15”）。但是，我没有设法编写适当的正则表达式。我认为这会奏效：
expression.split("\+");
but it doesn't. Do you know the correct solution?
但事实并非如此。你知道正确的解决方法吗？
采纳答案by Bart Kiers
It does. However split(...)returns an array, it does not "transform" your Stringinto a String[]. Try this:
确实如此。但是split(...)返回一个数组，它不会将您的“转换”String为String[]. 尝试这个：
String expression = "1+2+10+1";
String[] tokens = expression.split("\+");
回答by mikail
this way
这边走
expression.split("[+]");
