test
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parent
26ab99279a
commit
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24
src/main.rs
24
src/main.rs
@ -22,7 +22,8 @@ fn main() {
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let x = x + 1;
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println!("The value of x is {}", x);
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let x = "test";
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// let x = "test";
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let x: &'static str = "test";
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println!("The value of x is {}", x);
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// 可变变量
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@ -1025,14 +1026,12 @@ fn main() {
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// File::create(fnames).unwrap()
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// }
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Err(e) => match e.kind() {
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ErrorKind::NotFound => {
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match File::create(fnames) {
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Ok(f) => f,
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Err(e) => panic!("Problem creating the file: {:?}", e),
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}
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}
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ErrorKind::NotFound => match File::create(fnames) {
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Ok(f) => f,
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Err(e) => panic!("Problem creating the file: {:?}", e),
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},
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oe => panic!("Problem opening the file: {:?}", oe),
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}
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},
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};
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println!("{:?}", file);
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@ -1042,6 +1041,15 @@ fn main() {
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Message::Write(s) => println!("{}", s),
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abc => println!("{:?}", abc),
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}
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let nms = vec![String::from("Blue"), String::from("Yellow")];
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let x4 = &[String::from("Blue"), String::from("Yellow")];
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println!("{:?} {:?}", nms, x4);
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// let a = [1, 2, 3, 4, 5];
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let slice = &[1,2];
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}
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fn test_tuple(t: (i32, &str)) {
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