本文介绍了将 NSString 中的第一个数字转换为整数?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个像这样的 NSString:
I have an NSString like so:
@"200hello"或
@"0 something"我希望能够做的是取 NSString 中第一个出现的数字并将其转换为 int.
What I would like to be able to do is take the first occuring number in the NSString and convert it into an int.
这样@"200hello" 就会变成 int = 200.
So that @"200hello" would become int = 200.
并且@"0 something" 会变成 int = 0.
and @"0 something" would become int = 0.
推荐答案 int value; BOOL success = [[NSScanner scannerWithString:@"1000safkaj"] scanInteger:&value];如果数字并不总是在开头:
If the number is not always at the beginning:
NSCharacterSet* nonDigits = [[NSCharacterSet decimalDigitCharacterSet] invertedSet]; int value = [[@"adfsdg1000safkaj" stringByTrimmingCharactersInSet:nonDigits] intValue];更多推荐
将 NSString 中的第一个数字转换为整数?
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