normally, the functions used in network programming are ssize_t read (int fd, void * buf, size_t nbyte) ssize_t write (int fd, const void * buf, size_t nbytes) to transmit byte by byte. but usually, a word in Chinese accounts for 2 to 3 bytes, so g...
for example, socket.io cannot be linked under a different wifi (ip address (under the public network). If my computer is connected to the 4G used on the wifi, phone, it cannot be connected (page resources and so on are completely fine, but the socket is...
how to concatenate SQL statements to return data of type float when querying? ...
! this problem can occur in any program it s no use trying to restart the computer and reinstall vscode environment variable: JAVA_HOME = C:Program FilesJavajdk1.8.0_171 Path =% JAVA_HOME%bin CLASSPATH =.;% JAVA_HOME%lib;%JAVA_HOME%libtools.jar...
recently, my test girl gave me a hot BUG: Wechat. When Amap is called to get location information, an authorization pop-up box automatically pops up, as shown in figure WIFI^^4G:2.5sgeolocationtimeout2.5s: . I just want to ask why the location can b...
core.js:1350 ERROR Error: Uncaught (in promise): Error: StaticInjectorError [Common]: StaticInjectorError [Common]: NullInjectorError: No provider for Common! Error: StaticInjectorError [Common]: StaticInjectorError [Common]: NullInjectorError: No ...
Why do I write this way to get all the data ...