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521 B
521 B
字符串相关
class Solution {
public String replaceSpace(String s) {
StringBuilder builder = new StringBuilder();
int i = 0;
while (i < s.length()) {
char c = s.charAt(i);
if (c == ' ') {
builder.append("%20");
} else {
builder.append(c);
}
i++;
}
return builder.toString();
}
}