Merge pull request #218 from sweet2honey/master
match alphanumeric; fix array typo.
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commit
d820ecc19a
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@ -80,7 +80,7 @@ fn main() {
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// fill the blank with `matches!` to make the code work
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// fill the blank with `matches!` to make the code work
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for ab in alphabets {
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for ab in alphabets {
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assert!(matches!(ab, 'a'..='z' | 'A'..='Z' | '0' | '9'))
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assert!(matches!(ab, 'a'..='z' | 'A'..='Z' | '0'..='9'))
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}
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}
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}
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}
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```
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```
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@ -1,5 +1,5 @@
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# 数组
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# 数组
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数组的类型是 `[T; Lengh]`, 就如你所看到的,数组的长度是类型签名的一部分,因此数组的长度必须在编译期就已知,例如你不能使用以下方式来声明一个数组:
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数组的类型是 `[T; Length]`,就如你所看到的,数组的长度是类型签名的一部分,因此数组的长度必须在编译期就已知,例如你不能使用以下方式来声明一个数组:
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```rust
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```rust
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fn create_arr(n: i32) {
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fn create_arr(n: i32) {
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let arr = [1; n];
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let arr = [1; n];
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