[label1 mas_makeConstraints:^(MASConstraintMaker *make) {

        //使左边间距为

        make.left.equalTo(self.view.mas_left).offset(11);

        //顶部间距

        make.top.equalTo(self.view.mas_top).offset(70);

        //高度

        make.height.equalTo(30);

    }];

    

    [label2 mas_makeConstraints:^(MASConstraintMaker *make) {

        //使宽高等于label1

        make.width.and.height.equalTo(label1);

        //与label1顶部对齐

        make.top.equalTo(label1.mas_top);

        //与label1的间距为0

        make.leading.equalTo(label1.mas_trailing).offset(10);

    }];

    [label3 mas_makeConstraints:^(MASConstraintMaker *make) {

        //使宽高等于label2

        make.width.and.height.equalTo(label2);

        //与label2顶部对齐

        make.top.equalTo(label2.mas_top);

        //与label2的间距为0

        make.leading.equalTo(label2.mas_trailing).offset(10);

        //与父视图右边约束

        make.right.equalTo(self.view.mas_right).offset(-11);

    }];

 

 

 

 

 

 

 

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