C. Review the Step 3 summary (Figure 7).

检查步骤3摘要(图7)。

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The first improvement (which is also supported by modern versions of C) is to move the declaration of the i loop variable inside the loop, as shown in Listing 7

第一项改进（C 语言的现代版本也支持这项改进）是将 i 循环变量的声明移到循环之内，如清单 7 所示

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C-style comments can also be used, as shown on line 7.

c风格的注释全都可以使用，如第7行所示。

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The car will be called the Cunningham C-7, after America's postwar racing legend, Briggs Cunningham Jr.

FORBES: Ghost cars, ghost brands

They celebrated their joint venture at the Detroit auto show in January 2001 with the unveiling of the stunning Cunningham C-7 concept car.

FORBES: Magazine Article

In July, the London Telegraph reported that what appeared to be an SA-7 shoulder-launched missile was fired at an American C-130 Hercules aircraft.

NEWYORKER: Shifting Targets