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while 一段时间;当……时(和……同时);却 (1)i”ll be back for a while (2)he fell asleep while doing homework. (3)john was dressed in brown while mary was dressed in blue 连词while大致有以下四种用法: 1.引导时间状语从句,意为"当…

While用法:一、while作名词用,表示“一会儿”“一段时间”. 1.She likes to lie down for a while after lunch. 她喜欢午饭后躺一会儿. 2.Coming to another country to study requires a big adjustment and it takes a while to fit in. 来到另一个国家求

4zhong

while是一个循环函数,while后面的“()”中是一个判断表达式,表达式的返回值是真,则进入循环,表达式的返回值是假,则不进入循环,而是执行下面的语句~

一、while作名词用,表示“一会儿”“一段时间”1.She likes to lie down for a while after lunch.她喜欢午饭后躺一会儿.2.Coming to another country to study requires a big adjustment and it takes a while to fit in.来到另一个国家求学,需要花一段

while用作连词时,有以下几种含义:1、意为“当……时候,和……同时”,引导时间状语从句.例如:While I was watching TV,the bell rang.我看电视时,铃响了.) Tom watched TV while she ate her supper.(汤姆边吃晚饭边看电视.)2、意

while: [ (h)wail ] While用法小结 一、while作名词用,表示“一会儿”“一段时间”1.She likes to lie down for a while after lunch.她喜欢午饭后躺一会儿.2.Coming to another country to study requires a big adjustment and it takes a while to fit in.来到

while只能表示某一段时间,不能表示某一点时间.在while引导的时间状语从句中,其谓语动词只能是延续性的,而且也只能与主句中的谓语动词同时发生或存在. 例如: 1、While Jim was mending his bike, Lin Tao came to see him. 正当吉姆

当n==1时执行while循环结构里的语句,当n不等于1时,则跳过该循环执行循环体外的语句.while 循环的格式:while (表达式){语句;} while 循环的执行顺序:当表达式为真,则执行下面的语句,语句执行完之后再判断表达式是否为真,如果

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