Return the lowest index in the string where substring sub is found, such that sub is contained in the range [start, end]. Optional arguments start and end are interpreted as in slice notation. Return -1 if sub is not found. str.format(format_string, *args, **kwargs) Perform a string...
delete(1,6) s1.display() print('\n将s2连接到s1的后面') s1.concat(s2) s1.display() print('\n返回s1位置1-5的子串') s3 = s1.subString(1,6) s3.display() print('\n判断s1和s3的大小') print(s1.compareTo(s3)) 输出结果如下 1 2 3 4 5 6 在位置1插入s2 1 1 2 3 4 5 6...
# print string.maketrans('abcxyz','xyzabc') s = 'abc1230022xyz' print s #def translate(self, table, deletechars=None) """ S.translate(table [,deletechars]) -> string Return a copy of the string S, where all characters occurring in the optional argument deletechars are removed, and t...
| S.translate(table [,deletechars]) -> string | '''根据参数table给出的表(翻译表,翻译表是通过maketrans方法转换而来)转换字符串的字符, 要过滤掉的字符放到 del 参数中''' | Return a copy of the string S, where all characters occurring | in the optional argument deletechars are removed, and...
strip_prefix = "rules_python-1.4.0-rc4/gazelle", url = "https://github.com/bazel-contrib/rules_python/releases/download/1.4.0-rc4/rules_python-1.4.0-rc4.tar.gz", ) # To compile the rules_python gazelle extension from source, # we must fetch some third-party go dependencies that it ...
# 结果:ValueError: substring not found # rindex(self, sub, start=None, end=None): # 从右往左查询 ###判断是否是字母和数字(isalnum)### 判断字符串中只能包含 字母和数字 # isalnum(self) # 判断是否是字母和数字 aa = "beijing Tami KEJI YouXian GongSi 111" print...
) S.find(sub [,start [,end]]) -> int Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation. Return -1 on failure. In [102]: s1.find("i") #元素第一次...
# str.capitalize() : This is string example from runoob...wow!!! str.center(width[,fillchar]),width为字符串的总宽度,fillchar为填充字符 返回一个指定的宽度 width 居中的字符串,如果 width 小于字符串宽度直接返回字符串,否则使用 fillchar 去填充 str...
>>>string'asdf'>>>string.find('s')1>>>string.find('e')-1 1. 2. 3. 4. 5. 6. format(): 字符串格式化 >>>string="I am {0},age {1}">>>string.format('zenge',28)'I am zenge,age 28'还可以这样:>>>string="I am {ss},age {dd}">>>string.format(ss='zenge',dd=28)'...
源字符串内是否包含另一个字符串,如果指定 beg(开始) 和 end(结束) 范围,则检查是否包含在指定范围内,如果包含则返回索引值,如果不包含则抛出ValueError: substring not found异常。该方法 python find()方法一样,只不过如果str不在 string中会报一个异常。 语法:str.index(str, beg=0, end=len(string))...