for语句的执行顺序

for语句的执行顺序
2007-09-08 10:58

The for statement is written:

for (e1e2e3statement

First,  e 1 , usually an assignment statement, is executed. Then  e 2 , usually a comparison, is evaluated. If  false , the for-loop terminates. If  true , statement  is executed. Finally,  e 3 , usually an assignment statement, is executed, and control returns to evaluate  e 2  again.
================================================================================

for语句的书写格式:

   for(e1;e2;e3)

        statement

首先,运行e1,它通常是赋值语句,然后对e2求值,它通常是一个比较。如果e2的值为false,则结束循环。
如果e2的值为true,则执行statement。最后,执行e3,它通常是赋值语句,然后控制转移到对e2再次求值。

你可能感兴趣的:(C/C++)