var str = “abcdefg”;
str = str.replace(“de”,”12”);
str = str.replace(“b”,”b1e”);
或者
var str = “abcdefg”;
str = str.split(“de”,”12”);
var str1 = str.subString(0,str.indexOf(‘b’)+1);
var str2 = str.subString(str.indexOf(‘b’)+1);
str = str1+”1e”+str2;
var str = “abcdefg”;
str = str.replace(“de”,”12”);
str = str.replace(“b”,”b1e”);
或者
var str = “abcdefg”;
str = str.split(“de”,”12”);
var str1 = str.subString(0,str.indexOf(‘b’)+1);
var str2 = str.subString(str.indexOf(‘b’)+1);
str = str1+”1e”+str2;
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