How NSString containing "&" convert to " \u0026" in objective c

Question

例如：“运输和物流”到“运输\&物流”

Answer 1

The thing you are trying to do is to convert Text to Unicode Hex Representation.

the code below:

    NSString *amp = @"&";
    char ch = [amp characterAtIndex:0];
    NSLog(@"amp is %04x", ch);

printing out in console: amp is 0026

(4 in %04x is number of characters to log) now the deal is to represent 0026 as \&, you can use stringWithFormat method of NSString, to achieve the result, if you want it as string.

And it is not clear, if you need to convert only ampersand - you should search for it in string.

Answer 2

& 在 unicode 字符中是 \& 并且引导程序将接受 %26 作为 &