Here's an example of thewhilestatement: C while( i >=0) { string1[i] = string2[i]; i--; } This example copies characters fromstring2tostring1. Ifiis greater than or equal to 0, thenstring2[i]is assigned tostring1[i]andiis decremented. Whenireaches or falls below 0, execution ...
= TARGET_RESULTS || 'ON B.ID = C.PROJECTID AND C.YEAR_DATE = D.TIME) T ORDER BY ID,PROJECTNAME,TIME )C ON A.ID = C.ID AND B.TIME = C.TIME ORDER BY a.ID,b.TIME'; TARGET_RESULTS := TARGET_RESULTS || ') ' || ALIAS || ' '; --循环拼接关联SQL FOR TEMP IN DATA ...
while <expr>:<statement(s)> else:<additional_statement(s)> expr 条件语句为 true 则执行 statement(s) 语句块，如果为 false，则执行 additional_statement(s)。我们来看一个循环输出数字，并且判断大小的例子。判断的过程，和 if 语句差不多，这里就不再赘述。for 语句 Python for 循环可以遍历任何可迭代...
for、for-in的确是使用管比较频繁的，但是额外还有两种循环语句，一种是while语句，一种是do-while语句...
The following syntax illustrates how to move to the next iteration in case a certain if-statement is TRUE. Let’s first create a basic for-loop in R:for(i in 1:10) { # Regular for-loop cat(paste("Iteration", i, "was finished.\n")) } # Iteration 1 was finished. # Iteration 2...
WhileStatement(SyntaxToken, SyntaxToken, ExpressionSyntax, SyntaxToken, StatementSyntax) 來源: Syntax.xml.Main.Generated.cs 建立新的 WhileStatementSyntax 實例。 C# 複製 public static Microsoft.CodeAnalysis.CSharp.Syntax.WhileStatementSyntax WhileStatement(Microsoft.CodeAnalysis.SyntaxToke...
statement block others >>> a=2 >>> while a>0:... a-=1 ... print(a)...1 2，while提前终止用braek，程序强制停止ctrl+c >>> x=10 >>> while x>0:... if x%2==1:... break ... else:... print(x)... x-=1 ...10 使用while循环时，要留意条件的设置...
“if a == ‘rocky': ” 的意思是如果 a == ‘rocky’，那么返回 True，然后就执行下面的语句。
IEnumerable<T> collection =newT[5];foreach(V itemincollection) { } 在上述窗体中,集合元素的类型T必须可隐式或显式地转换为迭代变量的类型V。 如果从T到V的显式转换在运行时失败,foreach语句将引发InvalidCastException。 例如,如果T是非密封类类型,则V可以是任何接口类型,甚至可以是T未实现的接口类型。 ...
As we know thatelsecan be used withifstatement in Pythonand other programming languages (like C, C++, Java, etc). Python else with for/while In Python, we can useelsewithfor/whileto determine whetherfor/whileloop is terminated by abreak statementor not i.e.elsestatement used withfor/while...