替换几个不同位置的字符

#import <Foundation/Foundation.h>

 

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

    @autoreleasepool {

 

        NSString *str=@"2013年5月5日";

        NSString *newStr=[str stringByReplacingOccurrencesOfString:@"年" withString:@"-"];

        NSString *newStr1=[newStr stringByReplacingOccurrencesOfString:@"月" withString:@"-"];

        NSString *newStr2=[newStr1 stringByReplacingOccurrencesOfString:@"日" withString:@""];

        NSLog(@"str=%@",newStr2);

    }

    return 0;

}