如何在Objective-C中使用stringWithFormat方法追加字符串变量

Question

我想使用stringWithFormat将字符串附加到单个varilable中.我在使用stringByAppendingString时知道它.请帮我使用stringWithFormat为下面的代码添加.

NSString* curl = @"https://invoices?ticket=";
curl = [curl stringByAppendingString:self.ticket];
curl = [curl stringByAppendingString:@"&apikey=bfc9c6ddeea9d75345cd"];
curl = [curl stringByReplacingOccurrencesOfString:@"\n" withString:@""];

谢谢,Madan Mohan.

Answer 1

您可以curl使用-stringWithFormat:方法构造字符串:

NSString *apiKey = @"bfc9c6ddeea9d75345cd";
NSString* curl = [NSString stringWithFormat:@"https://invoices?ticket=%@&apikey=%@", self.ticket, apiKey];