toLowerCase()方法是String类方法,用于将给定的字符串转换为小写。 Syntax: 句法: String String_object.toLowerCase(); Here, String_object is a String object which we have to convert into lowercase. The method does not change the string; it returns the lowercase converted string. 在这里, String_...
The string.upper(), string.lower() and string.title() Methods are inbuilt methods in Python, these are used to format string in a particular format like uppercases, lowercase or little case format.1. The string.upper()Method returns uppercase string (where all characters of the string are...
In this code example, we create two strings and assign them to$aand$bvariables. We print them with theechokeyword. The first string is created with the double quote delimiters, the second one with single quotes. PHP string heredoc The heredoc preserves the line breaks and other whitespace (...
public void testToUpperCaseAndToLowerCase(){ String str="我喜欢Java"; str=str.toUpperCase(); System.out.println(str);//我喜欢JAVA str=str.toLowerCase(); System.out.println(str);//我喜欢java } 1.1.10 valueOf(查阅API) /** 将其他类型转换为字符串类型*/ public void testValueOf(){ doubl...
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说明:返回URL中指定的部分。partToExtract的有效值为:HOST, PATH, QUERY, REF, PROTOCOL, AUTHORITY, FILE, and USERINFO. hive> select parse_url ('https://www.tableName.com/path1/p.php?k1=v1&k2=v2#Ref1', 'HOST') from tableName;
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
28. String toLowerCase() :将字符串转换成小写。 29. String toUpperCase() :将字符串转换成大写。 例如: String s = new String("java.lang.Class String"); System.out.println("s.toUpperCase(): " + s.toUpperCase() ); System.out.println("s.toLowerCase(): " + s.toLowerCase() ); ...
S.lower()#小写S.upper()#大写S.swapcase()#大小写互换S.capitalize()#首字母大写String.capwords(S)#这是模块中的方法。它把S用split()函数分开,然后用capitalize()把首字母变成大写,最后用join()合并到一起#实例:#strlwr(sStr1)str1 ='JCstrlwr'str1=str1.upper()#str1 = str1.lower()printstr1 ...
s.toLowerCase():返回当前字符串中所有字符转换成小写 s.toUpperCase():返回当前字符串中所有字符转换成大写 4、连接字符串 ①使用+连接 ②使用concat连接,需要返回一个新的字符串。 String s = "a".concat("b").concat("c"); 相当于String s = "a"+"b"+"c"; ...