赋值从整数中生成没有强制转换的指针 [英] assignment makes pointer from integer without a cast

问题描述

我不明白这里有什么问题！我编译后
，总是告诉我：赋值使得整数没有演员的指针
我不知道是什么问题！请让我，谢谢。

I don't understand what is problem here! after I compile it, always show me: "assignment makes pointer from integer without a cast" I don't know what is the problem! Please let me, thanks.

SAVE

 NSUserDefaults *percentChecker = [NSUserDefaults standardUserDefaults]; 
 [percentChecker setInteger:0 forKey:percentCheckerSaveKey];

---

LOAD

---

LOAD

NSUserDefaults *percentChecker = [NSUserDefaults standardUserDefaults]; 
NSString *percentString;

//Alert! 
percentString = [percentChecker integerForKey:percentCheckerSaveKey];

推荐答案

这正是它告诉你的。 percentString 是一个指针，但 integerForKey：返回一个整数。将该整数分配给指针正在制作一个没有强制转换的整数指针。为什么要保存一个整数并稍后尝试将其作为字符串加载？

It's exactly what it's telling you. percentString is a pointer, but integerForKey: returns an integer. Assigning that integer to a pointer is making a "pointer from an integer without a cast". Why are you saving an integer and trying to load it later as a string?

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