#每日一善[超话]# ☁☁☁☁☁☁☁˘
#阳光信用# #每日一善#
The brightest future will always be based on a forgotten past, you can’t go on well in life until you let go of your past failures and heartaches. 光明灿烂的明天建立在忘却的过去之上。只有让以往的失败和伤心随风而去,你才能过得更好.
#阳光信用# #每日一善#
The brightest future will always be based on a forgotten past, you can’t go on well in life until you let go of your past failures and heartaches. 光明灿烂的明天建立在忘却的过去之上。只有让以往的失败和伤心随风而去,你才能过得更好.
#markchan[超话]#
《After the Sun》21 正文完结
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2https://t.cn/A6NDj0eo
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#相爱吧 (Let's Love)[音乐]#
《After the Sun》21 正文完结
1https://t.cn/A6NDjCFw
2https://t.cn/A6NDj0eo
3https://t.cn/A6NDTiQx
4https://t.cn/A6NkiZIG
5https://t.cn/A6NkeCoW
6https://t.cn/A6NFwIIE
7https://t.cn/A6NFb7oY
8https://t.cn/A6NFC2Yt
9https://t.cn/A6NFQFZS
10https://t.cn/A6NFDEnY
11https://t.cn/A6NsLuUj
12https://t.cn/A6NsBXwV
13https://t.cn/A6pviPNL
14https://t.cn/A6phsjxf
15https://t.cn/A6p7KOSb
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18https://t.cn/A6p47inL
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20https://t.cn/A6pGEKrs
#相爱吧 (Let's Love)[音乐]#
【Rust 中处理字符串的方法】#今天晒晒##rust编程之道##编程[超话]#
1. 字符串连接:
let str1 = "Hello";
let str2 = ", world!";
let str3 = str1.to_string() + str2;
println!("{}", str3); // 输出 "Hello, world!"
2. 字符串截取:
let str1 = "Hello, world!";
let str2 = &str1[0..5]; // 截取前 5 个字符
let str3 = &str1[7..12]; // 截取第 7 个字符到第 12 个字符
println!("{} {}", str2, str3); // 输出 "Hello world"
```
3. 字符串查找:
let str1 = "Hello, world!";
if str1.contains("world") {
println!("Found");
}
if let Some(index) = str1.find(",") {
println!("Comma found at position {}", index);
}
4. 其它处理字符串的方法:
let str1 = "Hello, world!";
println!("Length: {}", str1.len());// 获取字符串长度
println!("Uppercase: {}", str1.to_uppercase()); // 将字符串转换为大写
println!("Lowercase: {}", str1.to_lowercase()); // 将字符串转换为小写
println!("Trimmed: {}", str1.trim()); // 去除字符串首尾的空白字符
println!("Reversed: {}", str1.chars().rev().collect::()); // 将字符串翻转
1. 字符串连接:
let str1 = "Hello";
let str2 = ", world!";
let str3 = str1.to_string() + str2;
println!("{}", str3); // 输出 "Hello, world!"
2. 字符串截取:
let str1 = "Hello, world!";
let str2 = &str1[0..5]; // 截取前 5 个字符
let str3 = &str1[7..12]; // 截取第 7 个字符到第 12 个字符
println!("{} {}", str2, str3); // 输出 "Hello world"
```
3. 字符串查找:
let str1 = "Hello, world!";
if str1.contains("world") {
println!("Found");
}
if let Some(index) = str1.find(",") {
println!("Comma found at position {}", index);
}
4. 其它处理字符串的方法:
let str1 = "Hello, world!";
println!("Length: {}", str1.len());// 获取字符串长度
println!("Uppercase: {}", str1.to_uppercase()); // 将字符串转换为大写
println!("Lowercase: {}", str1.to_lowercase()); // 将字符串转换为小写
println!("Trimmed: {}", str1.trim()); // 去除字符串首尾的空白字符
println!("Reversed: {}", str1.chars().rev().collect::
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