How to get a variable name as a string in Python? In Python 2.x In Python 3.x In Python, there are several ways to convert a string to a variable name, but the reverse process is not exactly utilized so often in the programming world. This article focuses on how to get a variable...
例如,我们可以通过一个循环来遍历数据集合,并为每个数据创建一个对应的变量名。 List<String>data=Arrays.asList("A","B","C");for(inti=0;i<data.size();i++){StringvariableName="data_"+i;Stringvalue=data.get(i);// 使用可变变量名来处理数据System.out.println(variableName+": "+value);} 1...
* thread-local variable. If the variable has no value for the * current thread, it is first initialized to the value returned * by an invocation of the {@link #initialValue} method. * * @return the current thread's value of this thread-local */publicTget(){Thread t=Thread.currentThrea...
/// /// post一个指定的url,获得网页的源代码(用WebRequest实现) /// /// /// <returns> /// 如果请求失败,返回null /// 如果请求成功,返回网页的源代码 /// </returns> public static string GetContentFromUrl2( string url ) { //变量定义 string respstr; WebRequest myWebRequest=WebRequ...
TypeVariable[] types = m.getTypeParameters(); // print Type Parameter details for every TypeVariable for (TypeVariable t : types) { // print type parameter name // along with there method name System.out.println("Type variable for Method Name " + m.getName() + " is " + t.getName...
package com.demo.var; // 用作包名, ok class Demo { public void use_var_as_variable_name() { Integer var = 1; // 用作变量名, ok } public void use_var_as_variable_name2() { // 可以同时使用 var 作为变量名和类型名, ok String var = "what is var?"; var name = "ok"; } ...
Request parameter是客户端提交过来的参数,以“name=value”的字符串形式存储在Request对象中,所以对于parameter,只有getParameter方法。 例如,我们登录时提交账户信息,假如是GET方法提交(实际上不会用GET提交),那么在提交的信息会以"?username=root&password=123456"这种形式附加在表单指向的url后面,这种形式称之为Query ...
\t" + userClass.getName());logger.info("获取类名:\t" + userClass.getSimpleName());logger.info("实例化:\t" + userClass.newInstance());}// ...package com.test;public class User {private String name = "init";private int age;public User() {}public User(String name, int age) {...
I have a variable name = home.canvas.color. String home.canvas.color = "purple"; If I obtain an input from user = "home.canvas.color", is there a way that I can retrieve the value "purple" from the actual variable home.canvas.color? If so, can you show me please? Thank ...
staticfinal int low=-128;staticfinal int high;staticfinal Integer cache[];static{// high value may be configured by propertyint h=127;String integerCacheHighPropValue=sun.misc.VM.getSavedProperty("java.lang.Integer.IntegerCache.high");if(integerCacheHighPropValue!=null){try{int i=parseInt(intege...