public class Test { public static void main(String args[]) { String Str = new String("www.runoob.com"); System.out.print("返回值 :" ); System.out.println(Str.substring(4) ); System.out.print("返回值 :" ); System.
例如,使用基本的字符串切片和find()方法可以轻松实现子串查找与提取。 # 示例代码:使用切片查找子串string="hello world"substring=string[0:5]# 获取前5个字符print(substring)# 输出 'hello'# 示例代码:使用find()方法查找子串index=string.find("world")print(index)# 输出 6 1. 2. 3. 4. 5. 6. 7....
my_string = "apple,banana,orange" result = my_string.split(",") print(result) # 输出 ['apple', 'banana', 'orange'] substring函数:这个函数用于截取字符串的子串,通过指定起始位置和结束位置来实现。它的语法是string[start:end],其中string是原字符串,start是起始位置(包含),end是结束位置(不包含)。
new_string=search_result_string.split('约')[1] # 第一次切割得到 xxxx个,[1]代表切割右边部分 print(new_string) last_result=new_string.split('个')[0] # 第二次切割,得到我们想要的数字 [0]代表切割参照参数的左边部分 print(last_result) getstring=GetSubString() getstring.get_search_result()...
string模块,还提供了很多方法,如 S.find(substring, [start [,end]])#可指范围查找子串,返回索引值,否则返回-1 S.rfind(substring,[start [,end]])#反向查找 S.index(substring,[start [,end]])#同find,只是找不到产生ValueError异常 S.rindex(substring,[start [,end]])#同上反向查找 ...
The index method can’t return a number because the substring isn’t there, so we get a value error instead: In order to avoid thisTraceback Error, we can use the keywordinto check if a substring is contained in a string. In the case of Loops, it was used for iteration, whereas in...
如下示例：substring="zz"string="hello world"print(string.find(substring))如果存在，则返回子字符串...
首先对字符串进行遍历,如果遍历的字符元素不在 max_string 中,表示未出现重复字符串,对max_string进行追加元素 如果在 max_string 中,则对 max_string 进行分割,分割点是当前遍历的字符元素, 然后将分割后的字符串进行追加,然后更新 max_length, max_length 的最终的值是从分割后的字符串长度和当前 max_length ...
Python can’t find the all-lowercase string "secret" in the provided text. Humans have a different approach to language than computers do. This is why you’ll often want to disregard capitalization when you check whether a string contains a substring in Python. You can generalize your ...
Lower() converts a string to its lowercase variant. Replace(old,new) replaces the old occurrence of the substring old with the substring new. Find() reports the offset where the first occurrence of the substring occurs. >>> banner = “FreeFloat FTP Server” >>> print banner.upper() ...