Format String不是文字字符串（可能不安全）警告 [英] Format String is not a literal string (potentially insecure) warning

问题描述

可能重复：

警告：格式不是字符串文字，没有格式参数

我的应用程序中有以下代码行，供开发人员使用。我正在学习Objective C的基础知识，当我更新App兼容iPhone 5时，我看到以下警告（我没有更改他的代码）Format String不是文字字符串（可能不安全）。代码如下;

I have the following line of code that is in my app that a Developer worked on. I am learning the basics of Objective C and as I was updating the App to be iPhone 5 compatible, I see the following warning (I did not change his code) Format String is not a literal string (potentially insecure). The code is as follows;

self.progressHud.labelText = [NSString stringWithFormat:message];   

我不知道这意味着什么，也不想上传任何可能的内容安全问题或被Apple拒绝。大家都非常感谢您的帮助。

I don't know exactly what this means and don't want to upload anything that can either be a security issue or get rejected by Apple. Any and all help is appreciated from you all.

推荐答案

使用以下行：

self.progressHud.labelText = [NSString stringWithFormat:@"%@", message]; 

在目标C中，此行从任何格式（如int，float等）获取值以显示标签。因为UILabel和IBOutlet元素仅显示NSString值。

In objective C, this line get the values from any format such as int,float etc to display the Label. because UILabel and IBOutlet Elements only display the NSString values.

但是，如果您不需要创建包含多个变量的字符串，那么简单地使用它会更有效：

However, if you don't need to create a string with multiple variables, it would be more efficient to simply use:

self.progressHud.labelText = message;   

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