reusable helper methods that can be used not only in different places on the same page, but also on different pages.As in cshtml, write:@helper sum (int a,int b) { var result=a+b; @result }p>@ @helper syntax pdiv> We usually put a type of helper in a separate cshtml file, and the file name is equivalent to a class name.I put sum in the helpmath.cshtml file, then we use it in the cshtml above:p>[email protected] (2,3)pP>[email protected] (5,9)p > In addition, the system provides us
Travel Information EncyclopediaCan inquire about the location of the attractions, tickets information of the attractions, a number of hotels in the vicinityFor details, refer to: http://www.haoservice.com/docs/50Example:{"Error_code": 0,"Reason": "Success","Result": [{"Cityid": "2","CityName": "Anhui","Provinceid": "2"},{"Cityid": "45","CityName": "Huangshan","Provinceid": "2"},{"Cityid": "42","CityName": "Hefei","Provinceid": "2"},{"Cityid": "51","CityName": "Xuancheng","Provinceid": "2"}]}Trav
position has changed
OnStop
ie5| n| O
Event triggered when the browser's Stop button is pressed or the file being downloaded is interrupted
OnUnload
ie3| n2| O3
Events that are triggered when the current page is changed
Form-related events
Event
Browser support
Describe
OnBlur
ie3| n2| O3
Event triggered when the current element loses focus [both mouse and keyboard triggers]
' Binary to decimal public Function b2d (vbstr as String) as Long Dim vLen As Integer ' string length Dim vdec As Long ' result Dim VG As Long ' value Dim VI As Long ' bit Dim vtmp As String ' temporary string Dim vN As Long ' median vLen = Len (v BSTR) VG = 1 ' initial weight vdec = 0 ' result initial value b2d = Vdec ' return initial value for VI = VLen to 1 Step-1 vtmp = Mid (Vbstr, VI , 1) ' remove current bit vn = Val (vtmp) if VN VB Binary Conversion
fully product function.Product
Number of positive integers in the interaction with N using the (N)-Euler function
μ (N)-Mobius function, about the number of quality factors in the non-Gini number
Gcd (n, k)-the most common factor, when K is fixed
Number of positive factors in D (N)-N
Sum of all positive factors of σ (N)-N
σ k (N)-factor function, the sum of K power of all positive factors of n, where K can be any plural.
1 (n)-constant function, defined as 1 (n) = 1 (full product)
ID (N)-unit f
computer system. Thus, the space of the heap is more flexible and relatively large.Fragmentation problem: For the heap, frequent new/delete is bound to cause memory space discontinuity, resulting in a large number of fragments, so that program efficiency is reduced. For the stack, there is no problem, because the stack is advanced out of the queue, they are so one by one correspondence, so that there will never be a memory block from the middle of the stack poppedAllocation method: The heap is
), (' C ', 0)]13 >>> sorted ([' Bob ', ' about ', ' zoo ', ' credits '],key=str.lower) ignoring the case sort [' about ', ' Bob ', ' credits ', ' Zoo '] > Gt;> sorted ([' Bob ', ' about ', ' zoo ', ' credits '],key=str.lower,reverse=true) reverse sort [' zoo ', ' credits ', ' Bob ', ' about ']Staticmethod ()A. STR () string constructorSUM () summationThe method of calling the parent class by a. Super ()Group () tuple constructorA. Type () displays the type to which the object belongsVARs ()The.
object, so when used, it is not necessary to write the window object name, but to use it directly. Its main purpose is to use the output to generate warning messages or prompt the user, once the user presses the "OK" button, you can continue to execute other scripts.document.write (document.lastmodified) can produce the last modified date.JavaScript itself is case-sensitive, lastmodified and LastModified, which in its view are different results. The document.lastmodified parameter was written d
second parameter in the constructor true indicates that the file is written in append formFileWriter writer =NewFileWriter (FileName,true); Writer.write (content); Writer.close (); } Catch(IOException e) {e.printstacktrace (); } } Public Static voidMain (string[] args) {String fileName= "C:/temp/newtemp.txt"; String content= "New append!"; //append files by method aAppendtofile.appendmethoda (fileName, content); Appendtofile.appendmethoda (FileName,"Append end." N); //Show file Content
/net/ipv4/ip_forward activate IP routingHostname show hostname of systemHost www.example.com lookup hostname to resolve name to IP address and viceversa (1)nslookup www.example.com lookup hostname To resolve name to IP address and viceversa (2)IP link Show Show link status of all interfacesMii-tool eth0 Show link status of ' eth0 'Ethtool eth0 Show statistics of the network card ' eth0 'Netstat-tup Show all active network connections and their PIDNETSTAT-TUPL Show all network services listening
1 filesLs-rtl #按时间倒序列出所有目录和文件 (Ll-rt similar to LS-RTL)Touch File #创建空白的文件RM-RF Directory Name # does not prompt to delete non-empty directories (-R Recursive Delete, F Force)Dos2unix Windows text to Linux textUnix2dos Linux text to Windows texteNCA FileName # View Code install Yum install-y eNCA (there are certain problems with some computers that can be used some not.) At my present level there is no way to fix it.Md5sum #查看md5值ln source file Destination file #硬链接Ln-s source file Destination f
Tags: network command line process information run write file Linux command line through command Daquan Semaphore1,2,linux Kernel: Memory management, process management, file management, device management.Where memory management such as:View the system's memory status through the command cat/proc/meminfo. View shared memory, semaphores, message queue information through IPCS. Ipcs-m can view shared memory information.Process Management: You can use PS aux to view process information.Device Manag
to sniff packets (sniffing)Dhclient eth0 enable ' eth0 ' in DHCP modeRoute-n Show routing TableRoute add-net 0/0 GW ip_gateway Configura default GatewayRoute add-net 192.168.0.0 netmask 255.255.0.0 GW 192.168.1.1 Configure static route to reach network ' 192.168.0.0/16 'Route del 0/0 GW ip_gateway remove static routeecho "1" >/proc/sys/net/ipv4/ip_forward activate IP routingHostname show hostname of systemHost www.example.com lookup hostname to resolve name to IP address and viceversa (1)nslook
/net/ipv4/ip_forward activate IP routingHostname show hostname of systemHost www.example.com lookup hostname to resolve name to IP address and viceversa (1)nslookup www.example.com lookup hostname To resolve name to IP address and viceversa (2)IP link Show Show link status of all interfacesMii-tool eth0 Show link status of ' eth0 'Ethtool eth0 Show statistics of the network card ' eth0 'Netstat-tup Show all active network connections and their PIDNETSTAT-TUPL Show all network services listening
link status of ' eth0 'Ethtool eth0 Show statistics of the network card ' eth0 'Netstat-tup Show all active network connections and their PIDNETSTAT-TUPL Show all network services listening on the system and their PIDTcpdump TCP port Show all HTTP trafficIwlist Scan Show Wireless networksIwconfig eth1 Show configuration of a wireless network cardHostname show hostnameHost www.example.com lookup hostname to resolve name to IP address and viceversanslookup www.example.com lookup hostname To resol
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