去除字符串中的空格和回车

for (int i=0; i<trimedString.length; i++) {

        NSRange range={i,1};

        // 如果是空格就删除

        if ([[trimedString substringWithRange:range]isEqualToString:@" "]||[[trimedString substringWithRange:range] isEqualToString:@"%0A"]) {

            trimedString = [trimedString stringByReplacingOccurrencesOfString:@" " withString:@""];

        }

    }