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scrollWidth,clientWidth与offsetWidth的区别

  scrollWidth     是对象的实际内容的宽,不包边线宽度,会随对象中内容的多少改变(内容多了可能会改变对象的实际宽度)。  clientWidth     是对象可见的宽度,不包滚动条等边线,会随窗口的显示大小改变。   offsetWidth     是对象的可见...

top、postop、scrolltop、offsetTop、scrollHeight、offsetHeight、clientHeight

  1.top    此属性仅仅在对象的定位(position)属性被设置时可用。否则,此属性设置会被忽略  2.posTop    posTop的数值其实和top是一样的,但区别在于,top固定了元素单位为px,而posTop只是一个数值,一般使用posTop来进行运算。  3.scrollTop    设置获取位于...

Cannot assign to read only property 'exports' of object '#<Object>' ,文件名大小写问题!!!

有些坑不知道怎么就掉进去,可能一辈子都爬不起来!!!一、错误描述昨天还好好的,今天早上来从git获取了一下别人提交的代码就出错了!而提交代码的人运行一点错误都没有!!!cya@KQ-101MINGW64/e/Source/Repos/ProjectManagement/WebUI(master)  ...
代码星球 ·2020-04-10

SQL Server Profiler 跟踪某个数据库某张表sql语句

   点击:事件选择 点击确定 点击确定关键:选中显示所有事件、显示所有列,然后通过DatabaseName筛选数据库名称为Ecology的数据库,TextData筛选文本中包含表名T_Plant2的内容,%%用于模糊查询。 这时候执行某条sql,例如:sel...

Java继承(extends)的实现和 instanceof 运算符的使用

 extends在英文意思上看是“继承”的意思。子类是父类的拓展,例如我们要新定义一个Student类,发现Student类里的很多属性或方法在Person中都都是重复的,我们就可以让Student类继承Person类,使Student类拥有Person类的属性和方法。 话不...

04-树5 Root of AVL Tree (25 分)

AnAVLtreeisaself-balancingbinarysearchtree.InanAVLtree,theheightsofthetwochildsubtreesofanynodedifferbyatmostone;ifatanytimetheydifferbymorethanone,rebalancingi...
代码星球 ·2020-04-09

strlen和sizeof的区别

C语言中没有字符串,用的是字符数组来模拟字符串。C风格的字符串时字符数组然后在末尾加0表示结尾。在C语言中有strlen和sizeof两个函数求字符数组的长度函数,他们俩的区别就是是否把最后的结束标志也加上去。strlen是不加的,他表示字符串的长度。而sizeof求的是字符串在内存中的长度,所以它是加上最后的''的所...
代码星球 ·2020-04-09

04-树5 Root of AVL Tree (25 分)

AnAVLtreeisaself-balancingbinarysearchtree.InanAVLtree,theheightsofthetwochildsubtreesofanynodedifferbyatmostone;ifatanytimetheydifferbymorethanone,rebalancingi...
代码星球 ·2020-04-08

1141 PAT Ranking of Institutions (25 分)

AftereachPAT,thePATCenterwillannouncetherankingofinstitutionsbasedontheirstudents'performances.Nowyouareaskedtogeneratetheranklist.InputSpecification:Eachinputf...

04-树5 Root of AVL Tree (25 分)

AnAVLtreeisaself-balancingbinarysearchtree.InanAVLtree,theheightsofthetwochildsubtreesofanynodedifferbyatmostone;ifatanytimetheydifferbymorethanone,rebalancingi...
代码星球 ·2020-04-08

1104 Sum of Number Segments(20 分)

Givenasequenceofpositivenumbers,asegmentisdefinedtobeaconsecutivesubsequence.Forexample,giventhesequence{0.1,0.2,0.3,0.4},wehave10segments:(0.1)(0.1,0.2)(0.1,0....
代码星球 ·2020-04-08

1069 The Black Hole of Numbers(20 分)

Forany4-digitintegerexcepttheoneswithallthedigitsbeingthesame,ifwesortthedigitsinnon-increasingorderfirst,andtheninnon-decreasingorder,anewnumbercanbeobtainedby...
代码星球 ·2020-04-08

1066 Root of AVL Tree (25)

AnAVLtreeisaself-balancingbinarysearchtree.InanAVLtree,theheightsofthetwochildsubtreesofanynodedifferbyatmostone;ifatanytimetheydifferbymorethanone,rebalancingi...
代码星球 ·2020-04-08

1053 Path of Equal Weight (30)

Givenanon-emptytreewithrootR,andwithweightW~i~assignedtoeachtreenodeT~i~.The weightofapathfromRtoL isdefinedtobethesumoftheweightsofallthenodesalongth...
代码星球 ·2020-04-08

1034. Head of a Gang (30)

Onewaythatthepolicefindstheheadofagangistocheckpeople'sphonecalls.IfthereisaphonecallbetweenAandB,wesaythatAandBisrelated.Theweightofarelationisdefinedtobetheto...
代码星球 ·2020-04-08
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