Find its exact location and length based on the specific information in the string

#import <Foundation/Foundation.h>

int main (int argc, const char * argv[]) {

@autoreleasepool {

/* nsstring *[email protected] "Apple banana pear";

Nsarray *array=[str componentsseparatedbystring:@ ""];

NSLog (@ "%@", array); */

/*//substringtoindex from the beginning of the string to the location you specified, but not the location you specified

NSString *[email protected] "ABCDEFG";

NSString *newstr1=[str1 Substringtoindex:4];

NSLog (@ "%@", NEWSTR1);

Substringfromindex all characters starting at the specified position (and including the specified position)

NSString *newstr2=[str1 Substringfromindex:4];

NSLog (@ "%@", NEWSTR2); */

/*//intercept string by range

NSString *[email protected] "ABCDEFG";

Nsrange rang;

rang.location=2;

rang.length=3;

NSString *NEWSTR3=[STR3 Substringwithrange:rang];

NSLog (@ "%@", NEWSTR3); */

NSString *[email protected] "http://localhost:8099/test/user=admin&pwd=123";

Nsrange rang= [String rangeofstring:@ "pwd="];

NSLog (@ "Location=%ld,length=%ld", rang.location,rang.length);

NSLog (@ "pwd=%@", [string substringfromindex:rang.location+rang.length]);

}

return 0;

}

Find its exact location and length based on the specific information in the string