什么是两个分号';;'做 [英] what does two semicolns ';;' do
问题描述
我正在查看处理上传文件的一些代码,它有
循环,如:
for(;;){// for( [两个分号] {
这两个分号的功能是什么?循环直到休息?
我试图谷歌但是文本过滤器似乎删除了
分号。
I am looking at some code which process an uploaded file and it has
loops like:
for(;;){ // for([two semicolons){
what is the function of the two semicolons? loop until break?
I''ve tried to google it but the text filter seems to remove the
semicolons.
推荐答案
la***@portcommodore.com 写道:
la***@portcommodore.com wrote:
for(;;){// for([two twomicolons] {
这两个分号的功能是什么?循环直到休息?
for(;;){ // for([two semicolons){
what is the function of the two semicolons? loop until break?
两个分号是for的* part *构造。查看有关C或
C ++的任何关于for的书籍。循环。
这意味着该循环中的初始语句,中断条件和循环
语句是空语句。
这意味着for循环在启动时不会初始化任何内容,
不检查任何中断条件,并且不执行任何操作
每个循环结束。
这意味着,这是一个无限循环(直到通过调用
break()构造来破坏它循环)
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MSN :我_ ************************* @ hotmail.com
Jabber:iv ******** *@jabber.org; iv*********@kdetalk.net
< br>
la***@portcommodore.com 写道:
我正在查看处理上传文件的一些代码,它有
循环,如:
for(;;){// for( [两个分号] {
这两个分号的功能是什么?循环直到休息?
我试图谷歌它但文本过滤器似乎删除了
分号。
I am looking at some code which process an uploaded file and it has
loops like:
for(;;){ // for([two semicolons){
what is the function of the two semicolons? loop until break?
I''ve tried to google it but the text filter seems to remove the
semicolons.
在PHP文档中查找for循环。三个表达式,用
分号分隔。在这种情况下,表达式为null(也是有效的)。
-
============= =====
删除x来自我的电子邮件地址
Jerry Stuckle
JDS计算机培训公司
js ******* @ attglobal.net
==================
Look up a for loop in the PHP doc. Three expressions, separated by
semicolons. In this case, the expressions are null (which is also valid).
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================
6月28日,1:43 * pm,la ... @ portcommodore.com写道:
On Jun 28, 1:43*pm, la...@portcommodore.com wrote:
我正在看一些处理上传文件的代码,它有
循环,如:
for(;;){* * // for([two semicolons] {
这两个分号的功能是什么? *循环直到休息?
我试图谷歌它但文本过滤器似乎删除了
分号。
I am looking at some code which process an uploaded file and it has
loops like:
for(;;){ * * // for([two semicolons){
what is the function of the two semicolons? *loop until break?
I''ve tried to google it but the text filter seems to remove the
semicolons.
是的,这是一个无限循环
yes, that''s an infinite loop
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