在NSString的中间包含一个变量

Question

我目前试图使用它：

NSString *hello = @"Hello";
NSString *whatever = [hello stringByAppendingString:@", world!"];

它可以使用它，但它会做很多工作，因为我的目标是做这样的事情：

NSString = "Hello" +variable+ "My name is" +variable + ",Good day"

Answer 1

您可以使用NSString的方法stringWithFormat

示例

NSString *str = [NSString stringWithFormat:@"Hello %@ My Name is %@ ",var1,var2]

或

NSString *str = [NSString stringWithFormat:@"Hello %@ My Name is %@ ",@"Stack Overflow",@"FreelancsAndroidLovesyou"]

Answer 2

如果两个值相同，您可以选择执行此操作，

NSString *string = @"Hello YOUR_NAME, My name is YOUR_NAME, Good day";
string = [string stringByReplacingOccurrencesOfString:@"YOUR_NAME" withString:@"Your_desired_Name"];

<强>更新

如果两个值都不同，那么你可以这样做，

NSString *string = @"Hello %@, My name is %@, Good day";
NSString *output = [NSString stringWithFormat:string, variable1, variable2];

Answer 3

您可以使用NSString方法stringWithFormat。

目标C

NSString *strConcat = [NSString stringWithFormat:@"Hello %@ My Name is %@ ",var1,var2];

夫特

let strConcat = "Hello "+ strOne + " My Name is " + strTwo

OR

let strConcateSecond = "Hello \(strOne) My Name is \(strTwo)"