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nsstring to FloAt

- (NSString *) getRoundFloat:(float ) floatNumber { NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init]; [formatter setMaximumFractionDigits:1]; // .1f [formatter setRoundingMode:NSNumberFormatterRoundHalfDown]; // ...

方法很多,无意间在Stack Overflow到此方法特此标记:就是用NSNumber处理 NSNumber* n = //from somewhere if(strcmp([n objCType],@encode(float))==0) { NSLog(@"this is a float"); }else if(strcmp([n objCType],@encode(int))==0) { NSLog(...

NSString *str2 = [NSString stringWithFormat:@"%.2f%%",[str1 floatValue]*100];

IOS开发中是将NSInteger转化NSString类型,而不是转换为int类型,因为NSInteger就是int。 NSInteger转化NSString类型: [NSString stringWithFormat: @"%d", NSInteger]; NSString转化 NSInteger类型: NSInteger = [NSString intValue];

在后台返回float或者double类型时,利用NSDecimalNumber处理精度丢失问题。此处我是以string方式接收的,直接添加NSString的分类,修正方法贴出来如下: +(NSString )reviseString:(NSString )string{ /* 直接传入精度丢失有问题的Double类型*/ ...

NSString *newString = @"123"; 1、字符串转int int intString = [newString intValue]; 2、int转字符串 NSString *stringInt = [NSString ...

你好 myLabel1.text = [NSString stringWithFormat:@"%g",temp];

1. NSString转化为UNICODE String: NSString* fname = @“Test”; char fnameStr[10]; memcpy(fnameStr, [fname cStringUsingEncoding:NSUnicodeStringEncoding], 2*([fname length])); 2. NSString转化为char NSString* fname = @“Test”; char...

您好,1. NSString转化为UNICODE String: NSString* fname = @“Test”; char fnameStr[10]; memcpy(fnameStr, [fname cStringUsingEncoding:NSUnicodeStringEncoding], 2*([fname length])); 2. NSString转化为char NSString* fname = @“Test”...

[NSString stringWithFormat:@"%g",var];手机打的,不能保证打字没错误额

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