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方法类似其它语言的函数形参：定义实参：实际调用传递的参数方法的重载重载就是在一个类中，有相同的函数名称，但是形参不同的函数可变参数/不定向参数packagemethod;publicclassDemo02{publicstaticvoidmain(String[]args){Demo02demo02=newDemo02
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命令行传参有时希望运行一个程序时再传递给它消息，这需要靠传递命令行参数给main()函数来实现编写以下代码publicclassDemo02{publicstaticvoidmain(String[]args){//args.length数组长度for(inti=0;i<args.length;i++){
- 2023-12-10真机调试 Flutter 报错：Lookup failed: title in @getters in MyHomePage in package:flutter_demo02/main.dart
发生缘由学习Flutter更改lib目录下面的main.dart文件之后真机调试运行flutterrun报错：1#小组件库异常2══╡EXCEPTIONCAUGHTBYWIDGETSLIBRARY╞═══════════════════════════════════════════════════
- 2023-10-22Method Demo02
packagecom.chen.method;publicclassDemo02{publicstaticvoidmain(String[]args){doublesum=sum(1.0,1.0);System.out.println(sum);}//比大小publicstaticdoublesum(doublea,doubleb){doubleresult=0;
- 2023-10-14operator Demo02
packageoperator;publicclassDemo02{publicstaticvoidmain(String[]args){longa=158975155916185L;intb=123;shortc=10;byted=8;System.out.println(a+b+c+d);//longSystem.out.println(b+c+d);/
- 2023-09-20Java学习之路-Demo02
packagecom.chao.base;publicclassDemo02{publicstaticvoidmain(String[]args){//整数拓展：进制二进制0b十进制八进制0十六进制0xinti=10;inti1=010;//八进制0inti2=0x10;//十六进制0x0~9A~F16System
- 2023-07-21PHP代码练习Demo02
<!DOCTYPEhtml><html><body><?phpecho"<h2>PHPisfun!</h2>";echo"helloworld"; echo"I'mabouttolearnPHP!<br>";echo"This","string","was&qu