After installing Xcode 4.2, there is only iOS 5.0 SDK in Xcode.
In addition, I should support iPhone 3G and iOS 4.2.1.
How to use one Xcode to support one application Two or more SDKs?
I tried t
Tag: Different
Performance Test – Vegeta Load Test: Different subjects of each post request in the attack
Is there a way to change the load test of the json body in the vegetable in the later request load test in the vegetable.
I want to send in the json body for each request A request with diffe
Performance – Why is all refreshed [F5], then enter and press Enter from the address bar?
I have benchmarked my application, and I found one thing that surprised me. I hope it is clear why the two are different things. < /p> Press in the address bar, and then enter within 1.5 to 3 secon
The famous RPC and MQ have different differences and contacts.
RPC (Remote Procedure Call) remote procedure call, mainly to solve the problem of remote communication, does not need to understand the communication mechanism of the underlying network.
RPC
What is the relationship between different WebSocket protocols?
I recently learned that there are many WebSocket protocol specifications (one of them is called hixie-, the other is hybi-, and finally RFC 6455).
Can someone please some highlights? What is
Elastic search polymerization on different keys
I want to aggregate my documents on different keys in the “Category” field.
These are two files:
“date”: 1470271301,
“categories”: {
“1”: [blabla],
“2”: [blala]
}
“date”: 144343545,
“c
Server RAID5 disk array Different faults of data recovery methods lists and RAID disk array analysis
The principle of the server Raid 5 disk array algorithm The independent disk structure of distributed parity (also called raid 5) data recovery has a “parity” concept Need to understand. We can sim
iPhone – Different Objective-C type conditions expressed the lack of actors?
I received this error:
The conditional expression of different Objective-C types’struct NSNull *’and’struct NSNMutableArray *’lack a coercion
On this line of code:
((tempArray!= n
iPhone – There is a popular open source nslog alternative to enable it in Debug and different log levels?
Do many iPhone developers use the well-known/popular NSLog replacement/method?
This is a process to ensure that debug type logging only appears in the debug state (macro, etc.), and supports
iPhone – different nibs of different equipment
So I am writing an application, and I want it to be universal. When I create the project, I created a universal application. I have written all the iPhone code, and There are 10 classes. Now I want