/*
/**
* Sets the NSLayoutConstraint multiplier property
*/
- (MASConstraint * (^)(CGFloat multiplier))multipliedBy;
/**
* Sets the NSLayoutConstraint multiplier to 1.0/dividedBy
*/
- (MASConstraint * (^)(CGFloat divider))dividedBy;
*/
multipler属性表示约束值为约束对象的乘因数, dividedBy属性表示约束值为约束对象的除因数，可用于设置view的宽高比
这两个属性可以设置视图中的宽高比例
上代码。。
[aview makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(self.view);
make.bottom.mas_equalTo(self.view);
make.right.mas_equalTo(WeSelf.InputYuYinbtn.left);
make.height.mas_equalTo(aview.width).multipliedBy(0.6);// 高/宽 == 0.6
}];