The WHILE statement defines a set of statements to be executed until a condition that is evaluated at the beginning of the WHILE loop is false.

while语句定义了一个语句集合，如果在WHILE循环开始时某个条件的求值结果为false，那么就将执行这个语句集合。

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The second type of flow control statement in Python is the while loop, which executes a block of program statements while an expression evaluates True.

Python中的第二种流控制语句是while循环，它在一个表达式计算为True时执行一个程序语句块。

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A statement noted that while food prices have decreased from their peak last year, they remain high in historical terms.

VOA: special.2009.07.11

In a statement read to the court, he said that while he had no fear of death, he was frightened of pain.

VOA: standard.2009.08.14

In the statement, APEC economies with large deficits pledged to encourage private savings, while those with large surpluses pledged to strengthen domestic growth.

VOA: standard.2009.11.12

While the statement had little impact at the time, it stuck in their minds.

FORBES: U.S. Institute Senior Delegates�� Roundtable Speech (June 7, 2004 )

While the statement headed off the short term crisis, it's not clear that the Dafydd El problem has been resolved.

BBC: State of Play 2 - Plaid Cymru

However, while financial statement fraud continues to be a focus of the SEC and other authorities, these kinds of cases now appear to be fewer and farther between.

FORBES: Accounting Fraud Cases Are Dead. Long Live Accounting Fraud Cases.