Python3 replace () method
description
replace () method to a string of old (old string) replaced new (new string), if you specify the third parameter max, then replace no more than max times.
grammar
replace () method syntax:
str.replace(old, new[, max])
parameter
- old - will be replaced with the substring.
- new - new string, which replaces old substring.
- max - optional string to replace no more than max times
return value
Returns a string of old (old string) replaced with a new string new (new String) after generation, if you specify the third parameter max, then replace no more than max times.
Examples
The following example shows the replace () method using the function:
#!/usr/bin/python3
str = "www.w3cschool.cc"
print ("本教程新地址：", str)
print ("本教程新地址：", str.replace("w3cschool.cc", "w3big.com"))
str = "this is string example....wow!!!"
print (str.replace("is", "was", 3))
Examples of the above output results are as follows:
本教程新地址： www.w3cschool.cc 本教程新地址： www.w3big.com thwas was string example....wow!!!