The contains method returns true if the given pattern matches a sub-slice of this string slice. main.rs fn main() { let text = String::from("Rust programming is fun."); // Check if the string contains a substring if text.contains("Rust") { println!("The text contains 'Rust'.")...
Set boolean ok to true if string word is contained in string s as a substring, even if the case doesn't match, or to false otherwise. 不区分大小写的字符串包含 package main import ( "fmt" "strings" ) // Package _strings has no case-insensitive version of _Contains, so // we have...
39. Check if string contains a word Set boolean ok to true if string word is contained in string s as a substring, or to false otherwise. 如果字符串单词作为子字符串包含在字符串s中,则将布尔ok设置为true,否则设置为false。 package main import ( "fmt" "strings" ) func main() { s := ...
133. Case-insensitive string contains Set boolean ok to true if string word is contained in string s as a substring, even if the case doesn't match, or to false otherwise. 不区分大小写的字符串包含 代码语言:javascript 代码运行次数:0 运行 复制 package main import ( "fmt" "strings" ) //...
pubfnstr_format(nm: &str)->String{ format!("input: {}", nm) } #[cfg(test)] modtests { usesuper::*; #[test] fnit_works() { letresult=str_format("test_str"); assert!(result.contains("test_str"),"check:{}", result);// 断言通过不会打印 ...
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# an utility function to check if a string contains a substring stringContain() { [ -z "$1" ] || { [ -z "${2##*$1*}" ] && [ -n "$2" ];};} if ! stringContain 'E' "$GREPFLAGS" if ! echo "$GREPFLAGS" | grep -q E then # use F flag if there is not an E ...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 fnmain(){letx:f64=2.71828;lety=x.round()asi64;println!("{} {}",x,y);} 2.71828 3 82. Count substring occurrences 统计子字符串出现次数 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
("The secret number is {}", secret_number);// "::" is used for associated functions of a given type (equiv to static methods in OOP)// String::new() creates an empty string of type String (growable UTF-8 encoded text)let mut guess = String::new();/*std::io::stdin, if y...
);} fn find_emails(list: Vec<String>) -> Vec<String> { list.into_iter() .filter(|s| s.contains("@")) .collect()} For more filter examples, see this section from the documentationExpressions In Rust, almost everything is an expression, like in Kotlin and different from JavaScript or...