修改代码段内容,去掉代码最后的双引号。
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@ -22,7 +22,7 @@ struct FixedLengthRange {
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var rangeOfThreeItems = FixedLengthRange(firstValue: 0, length: 3)
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var rangeOfThreeItems = FixedLengthRange(firstValue: 0, length: 3)
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// the range represents integer values 0, 1, and 2
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// the range represents integer values 0, 1, and 2
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rangeOfThreeItems.firstValue = 6
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rangeOfThreeItems.firstValue = 6
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// the range now represents integer values 6, 7, and 8”
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// the range now represents integer values 6, 7, and 8
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```
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```
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@ -36,7 +36,7 @@ rangeOfThreeItems.firstValue = 6
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let rangeOfFourItems = FixedLengthRange(firstValue: 0, length: 4)
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let rangeOfFourItems = FixedLengthRange(firstValue: 0, length: 4)
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// this range represents integer values 0, 1, 2, and 3
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// this range represents integer values 0, 1, 2, and 3
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rangeOfFourItems.firstValue = 6
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rangeOfFourItems.firstValue = 6
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// this will report an error, even thought firstValue is a variable property”
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// this will report an error, even thought firstValue is a variable property
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```
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```
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