为什么golang移位运算符优先于加法？ [关闭]

Question

java:  System.out.println(1 + (9 - 1) >> 1);  // OUPUT: "4"

golang: fmt.Println(1 + (9 - 1) >> 1) // OUPUT: "5"

Go: https://kuree.gitbooks.io/the-go-programming-language-report/content/31/text.html

Java: https://introcs.cs.princeton.edu/java/11precedence/

Python: http://www.mathcs.emory.edu/~valerie/courses/fall10/155/resources/op_precedence.html

C/C++: http://en.cppreference.com/w/c/language/operator_precedence

It seems only golang >> is taking precedence over +? But why?

Answer 1

This is a difference in language philosophy and usability. Go views the operations as multiplication/division by powers of 2, a functional view. The other languages regard it as a bit-based operators, which they class next to Boolean operators. This is based more on a sense of common data type/view.