How to apply strings and the "||" operator

hasura

string zxs = ob.scr (sql, "shuju");
        if (zxs == "Beijing" || zxs == "Shanghai" || zxs == "Tianjin" || zxs == "Chongqing")
        {
            return true;
        }
        else
        {
            return false;
        }
An error is reported that bool and string cannot be applied
What should I write?

linhanerror

if ((zxs=="Beijing" )(|| zxs=="Shanghai")( || zxs=="Tianjin" )(|| zxs=="Chongqing"))
...

linhanerror

if ((zxs=="Beijing" )||( zxs=="Shanghai")||( zxs=="Tianjin")||( zxs=="Chongqing"))
A BOOL is best enclosed in ()

sardis1985

You won't add more ()

linhanerror

((zxs=="Beijing" )||( zxs=="Shanghai")||( zxs=="Tianjin")||( zxs=="Chongqing"))
//I didn’t believe it, I didn’t write it right.

psycholmu

The code is full, so you can’t see anything.
What is ob.scr(sql, "shuju")

xing_532

The method written in this code to see if the return value type is inconsistent
What you are returning now is the Bool value

froginwell

No parentheses are required.
The landlord's writing is correct, it should be something else, such as zxs, whether the punctuation is correct

22151146

The posted code is correct.

psycholmu

What does ob.scr(sql, "shuju") return?