= 1;i < floatWritables.length;++i){ tmp = floatWritables[i].get(); if(tmp > maxfloat...){ maxfloat = tmp; } } context.write(new IntWritable(1),...new FloatWritable(maxfloat)); } } Reducer package FindMaxValue; import java.io.IOException; import...= 0 , tmp; if(it.hasNext()) { maxfloat = ((FloatWritable)(it.next())).get...) { maxfloat = tmp; } } context.write(
title = array[i]; CGFloat titleW = [title sizeWithFont:Font(14) maxSize:CGSizeMake(MAXFLOAT..., MAXFLOAT)].width + 20; UIButton *button = [UIButton new]; button.backgroundColor
NSFontAttributeName] = [UIFont systemFontOfSize:17]; CGRect rect = [lbl.text boundingRectWithSize:CGSizeMake(100, MAXFLOAT...NSFontAttributeName] = [UIFont systemFontOfSize:17]; CGRect rect = [lbl.text boundingRectWithSize:CGSizeMake(100, MAXFLOAT
scaleAnimation.autoreverses = true; scaleAnimation.fillMode = kCAFillModeForwards; scaleAnimation.repeatCount = MAXFLOAT...如果指定一个无限大的重复次数,使用 MAXFLOAT。这个不应该和 repeatDration 属性一块使用。 RepeatDuration 这个属性指定了动画应该被重复多久。...80,groupLayer.position.y)); moveAnimation.autoreverses = true; moveAnimation.repeatCount = MAXFLOAT...float: 6.0 * Float(M_1_PI)) rotateAnimation.autoreverses = true; rotateAnimation.repeatCount = MAXFLOAT...groupAnnimation.animations = [moveAnimation, scaleAnimation, rotateAnimation]; groupAnnimation.repeatCount = MAXFLOAT
文字限制宽度 /// - fontSize: 文字大小 -- 默认为不加粗 func getBoundingFontHeight(rectWidth: CGFloat = CGFloat(MAXFLOAT...{ return 0.0 } let rectSize = CGSize(width: rectWidth, height: CGFloat(MAXFLOAT
animation.autoreverses = YES; //回退动画(动画可逆,即循环) animation.duration = 1.0f; animation.repeatCount = MAXFLOAT...NSNumber numberWithFloat:-1]; rotationAnimation.duration = 1.0f; rotationAnimation.repeatCount = MAXFLOAT...50, 50)]; animation.values = @[value1,value2,value3,value4,value5]; animation.repeatCount = MAXFLOAT...kWindowHeight - 100)); animation.path=path; CGPathRelease(path); animation.repeatCount = MAXFLOAT...group.fillMode = kCAFillModeForwards; group.removedOnCompletion = NO; group.repeatCount = MAXFLOAT
3.3 CAAnimation类的属性 带*号代表来自CAMediaTiming协议的属性) *duration:动画的持续时间 *repeatCount:重复次数,无限循环可以设置HUGE_VALF或者MAXFLOAT...numberWithDouble:2 * M_PI]; rotationAnimation.duration = 2.f; rotationAnimation.repeatCount = MAXFLOAT...numberWithDouble:SCREEN_WIDTH]; positionAnimation.duration = 2; positionAnimation.repeatCount = MAXFLOAT...value1, value2, value3, value4]; catKeyAnimation.duration = 2; catKeyAnimation.repeatCount = MAXFLOAT...kWindowHeight - 100)); animation.path=path; CGPathRelease(path); animation.repeatCount = MAXFLOAT
:= float32(1.4321) fmt.Printf("%T\n", f2) 输出结果: f2类型:float32 小技巧 我们可以通过内置的Math函数,获得常用的数值,比如: var maxFloat...= math.MaxFloat32; println(maxFloat) 输出结果: +3.402823e+038 注意 在go中,数据类型是有严格的区分的,不同类型之间是不能互相转换的,比如:
浮点数能够表示的范围可以从很小到很巨大,这个极限值范围可以在math包中获取,math.MaxFloat32表示float32的最大值,大约是3.4e38,math.MaxFloat64大约是1.8e308
float32 的浮点数的最大范围约为 3.4e38,可以使用常量定义:math.MaxFloat32 float64 的浮点数的最大范围约为 1.8e308,可以使用一个常量定义:math.MaxFloat64...math.Pi) fmt.Printf("%f\n", math.Phi) fmt.Printf("%.2f\n", math.Pi) // 查看系统默认最大的浮点数 fmt.Println(math.MaxFloat32...) fmt.Println(math.MaxFloat64) } 复数 有complex64(实部和虚部都是32位)和complex128(实部和虚部都是64位)两种 var c1 complex64
= [UIFont systemFontOfSize:17]; CGRect textRect = [text boundingRectWithSize:CGSizeMake(WIDTH-20, MAXFLOAT...= [UIFont systemFontOfSize:17]; CGRect textRect = [text boundingRectWithSize:CGSizeMake(WIDTH-20, MAXFLOAT
float32 的浮点数最大值约为 3.4e38, 可以通过 match包的方法来获取: match.MaxFloat32。...float64 的浮点数最大值约为 1.8e308, 可以通过 match包的方法来获取: match.MaxFloat64。 float32精确到小数点后7位,float64精确到小数点后15位。
rotationAnimation2.autoreverses = NO;//此行是控制是否倒转,yes为倒转,no为不倒转 rotationAnimation2.repeatCount = MAXFLOAT...rotationAnimation2]; // groupAnnimation.animations = @[ rotationAnimation2]; groupAnnimation.repeatCount = MAXFLOAT
changeAlignmentRightandLeft{ CGRect textSize = [self.text boundingRectWithSize:CGSizeMake(self.frame.size.width, MAXFLOAT
kfr.fillMode = kCAFillModeBackwards; kfr.duration = 0.1; // 设置反复次数 kfr.repeatCount = MAXFLOAT
UILabel的宽度就会相应发生变化),那么就可以利用下面的方法: CGSize size = [string sizeWithFont:font constrainedToSize:CGSizeMake(MAXFLOAT
= [UIFont systemFontOfSize:17]; CGRect textRect = [text boundingRectWithSize:CGSizeMake(WIDTH-20, MAXFLOAT
animation.autoreverses = YES; animation.duration = time; animation.repeatCount = MAXFLOAT;
= range s { // 遍历到指定字符,追加0 if byte(ch) == c { ans = append(ans, 0) } else { dis := math.MaxFloat64
领取专属 10元无门槛券
手把手带您无忧上云