Mac OS Swift开发如何使用Masonry

直接上代码：
letuserNameTextField =NSTextField.init()

userNameTextField.placeholderString="请输入手机号"

self.view.addSubview(userNameTextField)

userNameTextField.mas_makeConstraints{ (make:MASConstraintMaker?)in

make?.top.equalTo()(self.view.mas_top)?.offset()(150)

make?.left.equalTo()(self.view.mas_left)?.offset()(20)

make?.right.equalTo()(self.view.mas_right)?.offset()(-20)

make?.height.equalTo()(40)

};

letpassWordTextField =NSTextField.init()

passWordTextField.placeholderString="请输入密码"

self.view.addSubview(passWordTextField)

passWordTextField.mas_makeConstraints{ (make:MASConstraintMaker?)in

make?.left.equalTo()(userNameTextField)

make?.right.equalTo()(userNameTextField);

make?.height.equalTo()(userNameTextField);

make?.top.equalTo()(userNameTextField.mas_bottom)?.offset()(30)

};